Keeping duplicates of element types in a Revit project may cause poor model performance and larger project files. Eliminate these problems by easily and safely deleting all identical instances of an element in a project with Ideate Explorer, which, in the most recent update, allows you to fix ALL Identical Instances by either Retaining Originals or Retaining Latest.

Here are instructions:

  1. Make sure the Sort By criteria is set to Types
    • You can use the search criteria to limit the Identical Instances for review within the Warnings tab, but only to review information within the Revit properties palette in order to make the decision to Retain Latest or Retain Originals
  2. Right click on the top level warning description
  3. Choose Retain Originals or Retain Latest
  4. Ideate Delete will show you ALL elements that have Identical Instance warnings  
    • If you don’t want ALL elements deleted based on Retain Originals or Retain Latest, you can cancel (They will still be selected)
    • You can switch back to the Explore tab and choose the Current Selection for Display
    • You can uncheck any elements you don’t want deleted
  5. Use the red “x” within Ideate Explorer to delete

Deleting Duplicate Instances

By default, the Retain Originals or Retain Latest will select ALL elements that contain the Identical Instances warning. In the example below, there are 64 Curtain Wall Mullions and 11 Furniture items for a total of 75. These 75 elements will either be original elements or latest elements based on the Revit ID Number.

Deleting Identical Instances

The image below shows a Cancel on the delete and then switching to the Explore tab with the Display set to Current Selection. This allows you to uncheck elements you want to keep. The example now shows ONLY Furniture selected. You can see that 22 items will be shown in the Explore tab, but only 11 will be deleted based on the option of Retain Original or Retain Latest.

Deleting identical instances


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About the Author

Glynnis Patterson, NCARB – Director of Software Development
Glynnis is a registered architect and has worked within the building information modeling (BIM) industry since 1998. A graduate of Carnegie Mellon University, she has worked as an architect, educator and construction site manager. Glynnis is the Director of Software Development Services and continues to work with AECO clients worldwide, developing, and consulting on solutions to BIM challenges. In her spare time, Glynnis volunteers for the local high school and with growitgreenmorristown.org. Find Glynnis on LinkedIn.