Truncate dimension in a drawing

In a similar thread, there was a way to truncate the output of a parameter used as a dimension in a drawing (See thread:  http://communities.ptc.com/message/191893#191893 ).

What I am looking for is to truncate a dimension giving in a note by using the &d121 value where d121 is the dimension of the hole, depth or whatever.

I tried &d121[.2]  and that didn't work like it did for parameters like &holedepth[.2].

Thanks, Dale