Can’t move performances

I've got 125 performances stored in my Stage and I often move them around using Rig Manager (3.5.24).

Up until now I had no problem doing so. Yesterday, when I tried to move a performance (right click and select Move Up or Down) it won't let me. Move Up and Move Down are grayed out. If I try copy and past, it wants to overwrite the performance in the location I want to move to. I can’t drag and drop either. I read the manual, but that didn't help. I don't understand, it worked fine before! Any suggestions?

Dan

"Click on the first column (#) and the up/down keys will work."

I did that, and it worked! Thanks!