Glad to hear that's the info you wanted.
Controller Assignments are good (could be better... lots of threads here about that), but, you also have to 'handle with caution'!
Logic does automatically save your CA changes on quitting but...
it's advisable that, after you've made any significant changes in CA, you copy and save your cs preferences file - where assignments, zones, modes etc. are stored - to a 2nd location.
If you have made changes worth keeping, then, after quitting Logic, visit your User Library>Preferences folder, look for the com.apple.logic.pro.cs file, copy it and save it somewhere safe (Dropbox, iCloud etc.), into lt's own, dated folder.