Tuesday, February 26, 2019

Revit's Hardwired Subcategories - Titleblocks

Some Autodesk Revit families have hardwired subcategories which cannot be modified or deleted. In the case of the Titleblock family, there are three subcategories based on the line styles used in the Out Of The Box (OOTB) Revit content that would be nice if we could delete or modify.

Read on to learn more...

When you start a brand new titleblock family from the provided Revit template files, you notice the sheet boundary is set to the Title Blocks category. But the Manage -> Object Styles also has three subcategories that are not used and cannot be deleted or modified.

Initially, or after years of not modifying your firm's titleblock, you might thing something is using those categories or the file is corrupt and that is why you cannot delete them. I have seen that years ago with certain families not being editable after many version upgrades. But such is not the case.

As a quick test, if you change the Family Category for this same family those subcategories go away.

Where this is most unfortunate is the end-user has to see this clutter in the project environment, as shown in the image below.

Here is a somewhat relevant Revit Idea you might want to vote for; Unlock the default line types. Link found, and provided by, my friend Pieter Schiettecatte from A+I in NYC.

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