Coordinates and Experimental gameplay for bedrock servers

I really want to add various addons to my server but they need experimental gameplay and as far as i know i cannot activate experimental gameplay. i would also like if bedrock players were able to activate coordinates i tried to op myself like suggested but still could not turn on coordinates in game. i would be grateful if this was fixed

I'm unsure how to upload a single player world In MCPE for aternos would it be possible for a tutorial video