I have modeled a wiring duct that we will be using in multiple projects. This part will be anywhere from 4" to 72" in length. I've created configurations to set up the different length parts. That was easy. However, there are a number of mounting holes on the base of the part, spaced every 2". I wanted to use a linear pattern rather than creating individual holes and suppressing/unsuppressing them in the design table. Is there any way to control the number on instances in a design table? The spacing is easy to control, but I don't know what the variable name is to control the number of instances.

HELP!

Al