how can I control: Manage Revit Category collection? to add multiple categories?
I have OST_Walls and trying to manually add OST_Floors but it does not work
how to add new items?
Seems like the editor is broken. I highly suggest not using the persistent data editors. Generally it’s better that data is visible thorugh components in a visual programming environment. You can pass one or more category selectors to the filter components as shown below
I filed an issue related to the broken editor
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Thanks a lot, I always like to explore all tabs 
I guess we close this as it is logged now …
Fixed.
Please update.
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perfect, tested and approoved 
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