Mark Net Stop Layer Not Working as expected

Hi All,

Here is my tool info: 

Virtuoso ICADV12.3-64b: 

Here is the Screenshot of the MarkNet Options forum: 

We use MxCUT mask1 as a STOP layer for Mx mask1 metal. (x=0-3). Similar to MxCUT mask2 and Mx mask2. 

As highlighted in red, we can add color & lock options only for Layer. There is no provision to add color & lock options for STOP layer. 

Because of this issue, when I highlight a mask 2 M0, it stops at mask1 M0CUT. Same highlight issue between mask1 M0 and mask2 M0CUT. Similar for all Mx metals. 

It would be really helpful if there is an option to add color & lock for a STOP layer in markNet Options form. Is there any work around or other solution to this problem? Any Skill Code?

Thanks in Advance. 

Baig