I am attempting to create a plate with a flange across the top. Since the plate has breaks in it this translates into 4 different flanges. Thinking it would be nice to have them all be controlled with one dimension I created a global variable "flange length". I was able to set the first dimension equal to the GV but when I go to the rest the dimension text block will not accept the GV. clicking the green check does nothing, neither does the enter key.

Any suggestions?