Fire TV box problem with mapping a coloured button

[cableconnect]

Hi peeps

Running a Fire TV with STB emu app.
I want to map a key to emulate the blue button (search function in VOD library)

When trying to do this I'm getting stuck, maybe because the app is not fully compatible with the fire TV ?
Has anyone got a Fire TV with STB (latest version) working with a search function or am i making a mistake somewhere ?

 

[Redv]

Im having the similar issue, however to make things more complicated I lost the Fire Stick remote so having to use the app on Iphone, when I attempt to map keys the menu just flashes, then have to exit STBemu completely to get TV back.