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Read this commentPlease feel free to edit!Other Resources:http://revit.autodesk.com/Library/RMCSG/Revit_Model_Content_Style_Guide_v2_1.ziphttp://www.revitforum.org/architecture-family-creation/601-family-matrix-2.html
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Started by:Luke JohnsonDate started:9/6/2013
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Contributors:Gordon PriceIan McGawChris HeinarantaNancy McClurePaul F AubinDarren SnookJason HowdenDuncan LithgowTim WaldockBen MaloneKevin ThickettAndreas DieckmannAmrit BanerjeeTom WhiteheadAlex NesbittEric KoehneRob CrossPeter GyetvaiDmitry Dronov
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Revit Category
(not including annotation and tags)
Variant (usually relates to different Revit versions)Revit Subcategories (OOTB)Revit Discipline/s (hard coded filter list)Project Browser Definition LocationHosting Methods (ways to host this Category as a Loaded Component)Can be System, Loaded, InPlace, or Any?General Notes and Information, including Project-level awarenessRespect for View RangeCan be used directly in Project (without loading to other family or inplace)Can Join Geometry in ProjectTaggableHardcoded ParametersCan Link an Instance Param to a Global ParameterCut DominanceCan contain Adaptive PointsCan be divided into PartsModelling VariancesForms can be used as a valid target for Wall by Face, Roof by FaceCan be Scheduled (in version) [Revit flavor -- RAC, MEP, RST, RVT, Any]Can be added as an Embedded ScheduleAllows an Embedded Schedule to be added to its own scheduleCan be included in an AssemblyIs Cut by a ShaftBuilt-in Category Name (visible by API)Allow parameter binding (API)"Can add sub-category" (API)Reports material quantities (API)Cuttable (API "Is cuttable")APIObject "Is read-only"Can be Room boundingAbility to switch between CategoriesCan have Types, Instances or bothSpatially AwareCan add Room Calculation Point to Family (option in Family Category and Parameters)Default IFC Export Mapping (Revit GG)Target for these IFC Import Categories (Revit GG)Default OmniClass Number from OOTB Family TemplateSpecial Properties as a HostDetected as Host by typical non-workplane based familiesOption to Host Rebar is availableHas option to "Cut with Voids when Loaded"OOTB template/s provided to allow creation of Loadable ComponentRequires supporting files or certain Revit things to function correctlyParent Category (visible by API)Relevant Dynamo and Python detailsNew Category added in Revit version ####Can be Copy / Monitored between Linked Model and HostRevit Interference Check allowed
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Air TerminalsMechanicalFace, WorkPlane, Non-HostedLoaded or InPlaceYesNoYesYesYesYesOST_DuctTerminalTRUETRUEFALSEFALSEYesIfcAirTerminalIfcAirTerminalType
IfcAirTerminalBoxType
Yes
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Analytical BeamsYesYesOST_BeamAnalytical
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Analytical BracesYesYesOST_BraceAnalytical
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Analytical ColumnsYesYesOST_ColumnAnalytical
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Analytical FloorsYesYesOST_FloorAnalytical
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Analytical Foundation SlabsYesYesOST_FoundationSlabAnalytical
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Analytical Isolated FoundationsYesYesOST_IsolatedFoundationAnalytical
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Analytical NodesYesYesOST_AnalyticalNodes
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Analytical Wall FoundationsYesYesOST_WallFoundationAnalytical
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Analytical WallsYesYesOST_WallAnalytical
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Area LoadsYesOST_AreaLoadsN/KN/KN/KN/K
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Area SchemesNoOST_AreaSchemesN/KN/KN/KN/KDynamo 0.8 Categories node will fail for this category - use selection via Element Types node instead
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AreasNot in PBn/aSystemCan only be used on Area PlansYesn/aYesYesNoOST_Areasn/aIfcSpace
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AssembliesYesNoOST_Assemblies
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Cable Tray FittingsElectricalNon-HostedLoadedYesNoYesNoYesYesNoOST_CableTrayFittingTRUETRUEFALSEFALSENoIFCCableCarrierFitting
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Cable Tray RunsElectricalN/ASystemN/AN/AYesN/AYesNoOST_CableTrayRunN/A
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Cable TraysElectricalN/ASystemN/AN/AYesN/ANoOST_CableTrayTRUETRUEFALSEFALSEIFCCableCarrierSegment
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CaseworkArchitectureFace, Floor, Wall, Workplane, NonSpecialLoadedShown as viewed from above, even when element is above Cut plane of view (but within Top) 

(note: inplace Casework families can show as precut rather than from above)
NoYesConstruction Type
Finish
Depth
Height
Width
Keynote
Model
Manufacturer
Type Comments
URL
Description
Assembly Code
Cost
If started from a Generic Model Adaptive templateYesYesYesOST_CaseworkTRUETRUETRUETRUEYesBothRoom & Space, LevelYesIfcFurnitureYesYesYes
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CeilingsArchitecturen/aSystem or InplaceUnlike Walls and Roofs, can not be created by picking a faceYesYesYesYesYesYesOST_CeilingsTRUETRUETRUETRUEYesTypeLevelNoIfcCoveringN/AYes
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ColumnsArchitecture / StructureAssociated with a base level and top levelLoaded or InplaceColumns are inherently “Vertical”

Two-level based
Depends. There is a setting for pre-cut in plan in the familyYesNoNo
(cut by Walls)
If started from a Generic Model Adaptive templateYesYes (2014)YesYesOST_ColumnsTRUETRUETRUETRUEYesNoIfcColumnYesYesYes
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Communication DevicesCross Over (A / E)AnyYesYesYesOST_CommunicationDevicesTRUETRUETRUEFALSEYesIfcAudioVisualApplianceYes
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Conduit FittingsElectricalNon-HostedLoadedYesNoYesNoYesNoOST_ConduitFittingTRUETRUEFALSEFALSENoIFCCableCarrierFitting
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Conduit RunsElectricalN/ASystemN/AN/AYesN/ANoOST_ConduitRunTRUEFALSEFALSEFALSENo
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ConduitsElectricalN/ASystemN/AN/AYesN/ANoOST_ConduitTRUETRUEFALSEFALSENoIFCCableCarrierSegment
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Curtain GridsNoNoNoNo
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Curtain PanelsHosted by Curtain Wall / Curtain SystemLoaded or systemNo, however selection allowed, but gives error: Please remove or add segments on curtain grid instead of joining or unjoining geometry of the panelsYesIf started from a Generic Model Adaptive templateYesYesYesOST_CurtainWallPanelsTRUETRUETRUETRUEOnly to Door and WindowNoIfcCurtainWallYes
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Curtain Panelsby PatternYesYesYesNoYesYes
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Curtain SystemsNoOST_CurtaSystemTRUEFALSEFALSETRUENo
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Curtain Wall MullionsNoYesOST_CurtainWallMullionsTRUETRUEFALSETRUENoIfcCurtainWallMullion ProfileYes
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Data DevicesCross Over (A / E)YesYesYesOST_DataDevicesTRUETRUETRUEFALSEYesIfcOutletYesYes
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Detail ComponentsYesNo
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Detail ItemsFamilies/Doors/Detail Items/Family/TypeYesYesNoOST_DetailComponentsTRUETRUEFALSEFALSENoIfcAnnotationYes
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Detail ItemsFilled RegionsFamilies/Doors/Detail Items/Filled regionNoOST_FilledRegionFALSEFALSEFALSEFALSENo
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Detail ItemsMasking RegionsDo not exist as typesYes (2014)NoOST_MaskingRegionFALSEFALSEFALSEFALSENo
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DoorsFrame/Mullion
Glass
Hidden Lines
Opening
Panel
(others available in OOTB content)
ArchitecturalFamilies/Doors/Family Name/Type NameLoaded ...Usually required to be hosted in a Wall (unhosted versions are possible)YesYesNoYesIn addition to the usual:
Construction Type
Fire Rating
Finish
Head Height
Width
Rough Width
Height
Rough Height
Frame Material
Frame Type
Function
Sill Height
Thickness
Operation
URL
Cost
Sill Height
Visual Light Transmittance
If started from a Generic Model Adaptive templateYesYesNoYesNoOST_DoorsTRUETRUETRUETRUEYes, alwaysBothFrom Room & To Room, LevelYesIfcDoorYesYesYes
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Duct AccessoriesMechanicalFamilies/Duct Accessories/Family Name/Type NameNon-HostedLoadedYesNoYesNoYesNoOST_DuctAccessoryTRUETRUEFALSEFALSENoIfcDuctFitting
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Duct FittingsMechanicalFamilies/Duct Fittings/Family Name/Type NameNon-HostedLoadedYesNoYesNoYesNoOST_DuctFittingTRUETRUEFALSEFALSENoIfcDuctFitting
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Duct InsulationsMechanicalFamilies/Duct Insulations/Insulation/Type NameN/ASystemN/AN/AYesN/ANoOST_DuctInsulationsTRUETRUEFALSEFALSENoIfcCovering
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Duct LiningsMechanicalFamilies/Duct Linings/Lining/Type NameN/ASystemN/AN/AYesN/ANoOST_DuctLiningsTRUETRUEFALSEFALSENoIfcCovering
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Duct PlaceholdersMechanicalN/ASystemN/AN/AYesN/ANoOST_PlaceHolderDuctsTRUETRUEFALSEFALSENoIfcDuctSegment
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Duct SystemsMechanicalFamilies/Duct Systems/Duct System/Type NameN/ASystemN/AN/AYesN/AYesNoOST_DuctSystemTRUEFALSEFALSEFALSENo
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DuctsMechanicalFamilies/Ducts/Duct Profile/Type NameN/ASystemRevit 2020 added the ability to set pipe location based on top elevation or bottom elevation.N/AN/AYesN/ANoOST_DuctCurvesTRUETRUEFALSEFALSENoIfcDuctSegment
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Electrical CircuitsElectricalN/ASystemN/AN/AYesN/AYesOST_ElectricalCircuitN/A
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Electrical EquipmentElectricalFace, Non-HostedLoadedYesYesYesYesOST_ElectricalEquipmentTRUETRUETRUEFALSERoom & Space, LevelYesIfcBuildingElementProxyYesYesYes
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Electrical FixturesCross Over (A / E)Families/Eletrical Fixtures/Family Name/Type NameYesYesYesYesOST_ElectricalFixturesTRUETRUETRUEFALSERoom & Space, LevelYesIfcBuildingElementProxyYesYesYes
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EntourageYesNoIf started from a Generic Model Adaptive templateYes (2014)YesYesOST_EntourageTRUETRUETRUEFALSEYesYes
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EntourageRPCNoYes (2014)YesYesYesYes - rpc files must be located in correct directory
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Existing2016?
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Fabrication PartsCenterlinesCross Over (A / E)None (See MEP Fabrication Parts Browser)N/ALoadedYesPart Material, Fabrication Service, Specification, Insulation Specification, Weight, Insulation Thickness, Insulation Type, Lining Type, Lining Thickness, OEM, Product, Item DescriptionNoNoYesOST_FabricationPartsTRUEBothNoNo. Omniclass Parameters not hardwired in this CategoryNoNoNoNo. Hybrid objects that work in AutoCADNo. Hybrid objects that work in AutoCADYes-Fabrication Parts must be loadedFabrication PartsNo2016NoNo
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FasciasFamilies/Roofs/Fascia/type nameSystemYesYesOST_Fascia
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Fire Alarm DevicesCross Over (A / E)Families/Fire Alarm Devices/Family Name/Type NameYesYesYesYesOST_FireAlarmDevicesTRUETRUETRUEFALSEYesYesYes
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Flex DuctsMechanicalFamilies/Flex Ducts/Flex Duct profile/type nameN/ASystemN/AN/AYesN/AYesOST_FlexDuctCurvesTRUETRUEFALSEFALSENo
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Flex PipesPipingFamilies/Flex Pipes/Flex Pipe Round/type nameN/ASystemN/AN/AYesN/AYesOST_FlexPipeCurvesTRUETRUEFALSEFALSENo
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FloorsSystemFloors located outside the view range use an adjusted range that is 4 feet (approximately 1.22 meters) below the bottom of the primary range. Floors are drawn with the Beyond line style if the floor exists within this adjusted range.YesYesYesYesYesYesYesOST_FloorsTRUETRUETRUETRUEYesTypeLevelNoIFCSlabCan host Floor based familiesYesN/AYes - also with OptionsYes
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FurnitureNot cuttable by viewplaneFloor mounted: shown even when slightly below the view range.YesNoYesYesYesYesNoOST_FurnitureTRUETRUETRUEFALSERoom & Space, LevelYesYesYes
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Furniture SystemsYesNoYesYesYesYesOST_FurnitureSystemsTRUETRUETRUEFALSERoom & Space, LevelYesYes
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Generic AnnotationsYesOST_GenericAnnotationFALSETRUEFALSEFALSEYes
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Generic ModelsNon AdaptiveWorkplane, Face, Wall, Floor, Ceiling, Component or InplaceShown as viewed from above, even when element is above Cut plane of viewYesYesYesYesYes (2014)YesYesOST_GenericModelTRUETRUETRUETRUEYesYes
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Generic ModelsAdaptive
Loaded onlyYesYesIf started from a Generic Model Adaptive templateYesYesYesYesYesYesYesYesYes
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GridsYes (2014)YesOST_GridsTRUEFALSEFALSEFALSEN/AYes - also with Options
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GuttersFamilies/Roofs/Gutter/type nameSystemYesYesOST_GutterN/AN/A
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HVAC ZonesMechanicalN/ASystemN/AN/AYesN/AYesNoOST_HVAC_ZonesTRUETRUEFALSEFALSEN/A
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ImportsImportInstance (not a true Family Category)NoN/A
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Imports in Families?OST_ImportObjectStylesFALSEFALSEFALSEFALSEN/A
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Internal Area LoadsYesOST_InternalAreaLoadsN/A
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Internal Line LoadsYesOST_InternalLineLoadsN/A
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Internal Point LoadsYesOST_InternalPointLoadsN/A
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LevelsStoryCommonN/ASystemN/AYesNoEmbedded CalloutN/AVisible orthogonally N/AYes, CommonYesN/AOST_LevelsTRUEFALSEFALSEFALSENoNoTypesDefines spaceN/AHosts most Family CategoriesUsuallyNoNoRequires Callout to be visibleYes - also with Options
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LevelsNon-storyCommonN/ASystemN/AYesNoEmbedded CalloutN/AVisible orthogonally N/AYes, CommonN/ANoNoTypesDefines spaceN/AHosts most Family CategoriesUsuallyNoNoRequires Callout to be visibleYes - also with Options
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Lighting DevicesCross Over (A / E)YesYesYesYesOST_LightingDevicesTRUETRUETRUEFALSEYes
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Lighting FixturesCross Over (A / E)YesYesYesYesOST_LightingFixturesTRUETRUETRUEFALSERoom & Space, LevelYesYesYes
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LinesModelVisible in 3D and projectionNoOST_LinesFALSETRUEFALSEFALSEN/A
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LinesDetailOnly visible in one viewOST_LinesFALSETRUEFALSEFALSEN/A
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Line LoadsYesOST_LineLoadsN/KN/KN/KN/KN/A
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Mass FloorsYesOST_MassFloorN/KN/KN/KN/K
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Mass"Create Form" from points and linesYesUses Points, Lines and "Create Form..." toolYesYesNoYesCan not switch to or from any other CategoryYes2010
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Mass2009 version MassContains normal form creation tools - Extrusion, Sweep, Blend etcYesYesNoOST_MassTRUETRUEFALSETRUENot since 2009
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MaterialsYesOST_MaterialsTRUEFALSEFALSEFALSEN/A
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Mechanical EquipmentMechanical / Plumbing / Fire ProtectionFace, Non-HostedLoaded or InplaceYesNoYesYesYesYesOST_MechanicalEquipmentTRUETRUETRUEFALSEYesYesRoom & Space, LevelYesYesYes
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Model GroupsYes (2018)N/A2018
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Model TextYesOST_ModelTextN/KN/KN/KN/KN/ADynamo 0.8 Categories node will fail for this category - use selection via Element Types node instead
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Nurse Call DevicesCross Over (A / E)YesYesYesYesOST_NurseCallDevicesTRUETRUETRUEFALSEYes
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PadsSite - Pads - {Type Name}NoneSystemIn past Revit versions, Pads were a Subcategory of Site. When Tab-selecting, in 2013 it reads as "Pads - Pad - {Type Name}". Still shows under Site in the Schedule selection dialog.NoNoYes (2014)YesOST_BuildingPadYes
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ParkingLoaded or inplaceYesIf started from a Generic Model Adaptive templateYesYesOST_ParkingTRUETRUEFALSEFALSELevelNoYes
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PartsSystem ?YesOST_PartsTRUETRUETRUETRUEN/A
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Pipe AccessoriesPipingNon-HostedLoadedYesNoYesYesYesOST_PipeAccessoryTRUETRUEFALSEFALSEYes
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Pipe FittingsPipingNon-HostedLoadedYesNoYesYesYesOST_PipeFittingTRUETRUEFALSEFALSE
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Pipe InsulationsPipingN/ASystemN/AN/AYesN/AYesOST_PipeInsulationsTRUETRUEFALSEFALSE
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Pipe PlaceholdersPipingN/ASystemN/AN/AYesN/AYesOST_PlaceHolderPipesTRUETRUEFALSEFALSE
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PipesPipingPipes - Pipe Types - {Type Name}N/ASystemN/AN/AYesN/AYesOST_PipeCurvesTRUETRUEFALSEFALSE
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Piping SystemsPipingN/ASystemN/AN/AYesN/AYesYesOST_PipingSystemTRUEFALSEFALSEFALSE
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PlantingLoaded or inplaceScaleableYesNoYesIf started from a Generic Model Adaptive templateYesYesOST_PlantingTRUETRUEFALSEFALSENoRPC versions need image files
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PlantingRPCLoadedScaleableYesNoYesIf started from a Generic Model Adaptive templateYesYesOST_PlantingTRUETRUEFALSEFALSENoRPC versions need image files
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Plumbing FixturesCross-Over (A / P)Face, Non-Hosted, (Model Based?)Loaded or inplaceFor best use these should be face-based on non-hosted for use in the MEP model, esp. when the copy monitor function is gonig to be used. Luke thoughts? I know many architects that prefer to use model based elements.YesNoYesYesYesOST_PlumbingFixturesTRUETRUETRUEFALSERoom & Space, LevelYesYesYesYes
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Point CloudsYesOST_PointCloudsFALSEFALSEFALSEFALSE
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