Arguments

(optional)
specifies the Category (as predefined integer constant) or as 
categoryId  (integer) BIM property category ID to delete all PropertsSets from, can be omitted (bcBimCategoryUser is used then); see Category Constants
---or---
categoryName  (string) BIM property category to delete all PropertsSets from (can be an empty string for bcBimCategoryUser), see Category Constants

if omitted, the all PropertySets from any category are deleted

Return

T or NIL, indicating success or failure

Example

Remarks

the Category name/label is case-insensitive