A few more DSC questions

Now that I have this running, I have a two questions (maybe more to come) on some of the features:
1. Zone naming -- how do I find the Zone ID for each zone on a DSC system?
2. Custom buttons on the keypad -- how do I find these? For example, there is a scroll button on the keypad (< and >) that I would like to be able to duplicate. I see there are custom buttons I can add to the keypad, I just don't know what to fill in for the "code" field.
Thanks again for all your support!
1. Zone naming -- how do I find the Zone ID for each zone on a DSC system?
2. Custom buttons on the keypad -- how do I find these? For example, there is a scroll button on the keypad (< and >) that I would like to be able to duplicate. I see there are custom buttons I can add to the keypad, I just don't know what to fill in for the "code" field.
Thanks again for all your support!