Shows the unformatted top level of an assembly.
Unformatted level returns the top levels as a length in
mm so you can format them and include them
into formulas in templates.
You can use this attribute as a user-defined attribute also in part marks and associative notes.
ASSEMBLY_TOP_LEVEL attribute, the
ASSEMBLY_TOP_LEVEL_UNFORMATTED attribute cannot be formatted through the MarkDimensionFormat.dim file.