It's a semi-standard that only things that begin with a * can appear multiple times. (with the exception of LoadModule)

I would agree that bang commands are a more appropriate solution, preferably in combination with an Init event for the module that make up each edge. Another option is to create an !Init script for each edge with mzScript.

Actually though, it looks like if you use *jDeskWorkArea instead, your original attempt just might work, but that'll lead to confusion if you ask me.