Vita remote play - only front touch screen.

Hiho.

Some time ago Square Enix give us new control system on remote play on vita with using only front touch screen and disable back touch screen, now after patch that option don't work and option "remote play input" is locked on Relative.

Please give me instruction how to enable control with front panel on my vita.

update: Vita control with front panel still don't work but i cant find any help, official Square Enix support center don't give me any answer about that.
Please tell me, if that option was bugged and was blocked by Square or something like that, why i don't a information about it in any patch note?