Is it possible to annotate Civil Cell features via side slope annotation ?

Hi, I'm able to annotate side slope annotation for features created via normal corridor. But unable for features created via civil cells. I used the same templates and linear templates for the corridor as well as for the civil cell respectively. The problem is that side slope annotation doesn't work for features created via civil cells. Hence, is it possible to annotate civil cell features via side slope annotation ?

I'm using open rail designer 10.05.00.30.