keymap editor add-on

Hi... first of all I want to apologize for my poor english.

Until recently i used the regular kodi on my windows 10 laptop, and I used the add-on called "keymap editor" to create hotkeys - mainly for delaying the subtitles when the weren't synced. it worked perfect on my laptop with my regular logitec keyboard as well as with my rii i8+ keyboard (Israel Hebrew Language Rii i8+ Mini Wireless Keyboard Mouse Combo-13.47 Online Shopping| GearBest.com).

Yesterday I installed LibreELEC 7.0.2 on my raspberry pi 3. I installed the "keymap editor", and it doesn't work. both of the keyboards work as they should, but the hotkeys that I created with the add-on aren't working.

Does anyone know how I can solve this or familiar with alternatives?

Thanks a lot,

Yair

Sorry... but I didn't understand what I need to do. i'm pretty new to this...
I enabled the debug logging and rebooted, but I dont know what to do now. (just try to use the hotkeys? open the add-on and create new hotkeys?)

thanks...