Before this post I spent an hour with my remote and manual, read the MX-500 page here, and search the forums, and I can't seem to find how to do this.
And the sad part is, I have done this before!
This is what I want to know how to do.
Change the name (label) of one of the 10 MAIN buttons on the LCD screen.
Like how I changed AUX to Tivo.
Here is a picture

I just can't remember how I did this. Everytime I go to Edit, and select the button I want to rename (VCR2), it just takes me to the next page.
Please Help
Thanks in advance