I'm sorry, but I still can't get it to work! I got the split poly tool to work by going to Edge mode and it added one vertex about in the center. This is exactly what I did after the split: 1. Clicked on Edit Polygons -> Merge Edge Tool [optional box] 2. Selected the "Reset Tool" button to reset any changes I may have made accidentally. 3. Right clicked on the model and selected "Edge" 4. Zoomed in and clicked on the left edge. ...But the edge isn't highlighted! I can't select the right edge either. I can SEE the edges outlined after I turn on edge mode, but I try selecting the left edge like you showed in your screen and it doesn't work! When I exit the Merge Edge Tool and go into edge mode, I can select the edges fine. I really appreciate your help and patience! I think I mentioned this is my original post as well, I can't figure out what I am doing wrong. I looked the tool up in the Maya manual, but it just talks about the First/Middle/Second options for the tool.