I just tried and it appears there are a couple of things that changed in v3 that prevent the current code from working.
I'll make a few updates and get out a fix for this issue in the next week to allow this to be added again.
The new syntax will be:
onclick="wagmp_map_1_obj.openWindowByAddress('8899 University Center Ln');"
We are working on a couple of other issues reported, so we should have a build out within a week.