I´ve managed to use Commander Norton as frontend for the emu
First uploaded the emu to Xbox and put cn.exe in games dir and some games too each in their own dir
Then make a mystuff.bat with notepad with something like
config -writeconf e:emulatorsdosbox_v2cn.cfg
c:nc.exe
and upload it to games dir
exec dosbox and reset console
edit mystuff.bat and change writeconfig for readconfig and edit cn.cfg with you keys, I use
xbox_1_BUTTON_A=32
xbox_1_BUTTON_B=306
xbox_1_BUTTON_X=308
xbox_1_BUTTON_Y=13
xbox_1_BUTTON_BLACK=27
xbox_1_BUTTON_WHITE=121
xbox_1_BUTTON_LTRIG=292
xbox_1_BUTTON_RTRIG=293
xbox_1_BUTTON_START=0
xbox_1_BUTTON_BACK=290
xbox_1_BUTTON_LTHUMB=288
xbox_1_BUTTON_RTHUMB=289
xbox_1_BUTTON_DPAD_UP=273
xbox_1_BUTTON_DPAD_DOWN=274
xbox_1_BUTTON_DPAD_LEFT=276
xbox_1_BUTTON_DPAD_RIGHT=275
then upload cn.cfg and mystuff.bat and now you can use dosbox without keyboard, navigating trough dirs with arrows ans using Y as return, white as escape, trigers as f11, f12, x as alt, b as ctrl, a as space and thumbs as f7,f8
I suppose using cn before games kills some memory but I use cn 2.0 veryy old