Change Request: Extended Ralbracket dimensions should refer finished floor

Actually the extended bracket dimensions refer bracket positions and the guide rail end positions. This behavior SHALL remain. (blue lines in image)

Change request:
Additionally a new flag on view frame level should assign the finished floor levels as reference plane. ( green dashed lines)

In that case the dimensions referring the guide rail end will not show up. The user has to define, which of the 2 scenarios he wants to use.