A limited set of actions can assigned via macro commands. Incompatible actions are ommited from the generated macro. Also note that Macros are limited to 15 lines each.
A SMN layout that makes sense for my brain and how I play. Single Target on main, AoE on hotbar 2, which I usually switch to by hitting right bumper (R1) and then staying on that hotbar as needed.
Updated for 7.0!
SMN Xbox
Bun Boss Summoner heavily modified for my needs.
Gain Searing Flash. (Decouple from Searing Light. Teleport as placeholder.)
No new buttons otherwise.