Was it the 5.x or 6.x remotes? It has been since 2012 of having a 722, so do not take my word for it, but I am pretty sure all the VIP DVRs have the system config available option. I do believe I had done it a couple times on my old 722 with my 20.0 remote.
I have a 722 and it came with an IR-only remote (5.something?), and the 6.3 (I just checked) which could do IR and UHF. I use the 6.3 on both TV1 and 2 because I have my receiver downstairs in the equipment room. If
any remote can be used to back up the timers on a 722, it's news to me! If you've done it, then great.
I always thought that Dish was kind of lame backing up timers to a remote

rather than have a store/restore function on what is now known as DishAnywhere.com.