A common question is, "How do I redefine F1?"
It is rather simple. Attached is an animated .gif that shows the process of redefining F1 to use the Nea OSnap override. Make sure your Caps Lock is off.
Also attached is a CUI file that redefines F1 to issue a Cancel (this is my personal favorite, since F1 is so close to the Esc key). To redefine F1 in your own CUI, you can simply load this CUI in the Transfer tab, and transfer the Keyboard Shortcut into your own CUI file.