Failed to specify the OmniClass parameter value of the family file

[b10705001F2HWP]

Hello, I would like to ask why the OmniClass parameter value in the family file cannot be changed? Or I can only select the number provided by Revit and cannot enter it manually?

But the value I want to specify is not in the OmniClass list provided by Revit. The OmniClass manual I refer to is this.
OmniClass

In addition, why the numbers provided in this txt are different from the OmniClass list provided by Revit?

And I found that when opening different family files, the OmniClass list provided by Revit will be different.

[Simon_Weel]

Modify the file?

[b10705001F2HWP · Accepted solution]

Modify the OmniClass parameter value in the family file.

I think I have found the problem, because I didn't update the taxonomy file associated with revit...

Thank you for your reply! 😃