Setting Up ARB Compressor/Locker

I'm getting an SPOD soon and setting up custom switches with OTRATTW. I'm new to electrical and have very limited experience with the ARB locker on a buddies truck.

First thing: I believe my buddy had it setup where the compressor needs to be activated first then you can engage the rear air locker. Then you turn the compressor off to disengage. Is this true all of the time? (I can't get in contact with him anymore to ask him).

If so can I use this switch to do both in one?

http://www.otrattw.net/V-SERIES-SEALED-ROCKER-SWITCH-BODY-ONLY-NO-ROCKER-VMD2UXXB-00000-000.html

It is a DPDT OFF/1.ON/2.ON (MOMENTARY) switch. Can I use this to 1. Use the compressor alone to air up my tires 2. Activate the compressor and engage the locker?

 

You will need to turn on the compressor first. Every time, and leave it on.

Then flip the locker switch. Leave the compressor on as you have the locker engaged.