BOTTOM_LEVEL
Shows the bottom level of a single part, cast unit, assembly, part of a connection or a pour object.
Bottom level takes the unit and accuracy from the MarkDimensionFormat.dim file.
You can use this attribute as a user-defined attribute also in part marks and associative notes.
Note:
This attribute returns the value as text, so you cannot use formulae with this attribute. Use BOTTOM_LEVEL_UNFORMATTED instead.