When we change the discipline from Architetural to Electrical/Mechanical then the family becomes transperant. After creating masking region into the family its works in Architetural but not shown in Electrical/Mechanical. Please see the attached image for ref.
Solved! Go to Solution.
Is that family of the Generic Models Category? That category is considered an Architectural category, so it is automatically shown halftone and transparent in Electrical and Mechanical Views, just like Walls. If this is not the case, please elaborate or post that Family file.