Can you make an overlay that shows info about where the roaming pokemon is? So we wont have to open the screens that show it each time?
The roaming Pokemon overlay does say if it's on the same route you are via a (!) Making at the bottom right. That's the best that can be done since unless you step on the same route as it you would never catch it due to it moving whenever you change routes.
But it does work in a couple tests just leaving the overlay on and walking back and forth over a route border has never taken more than a few minutes.
sorry if i am disturbing but would it work with every compatible game
Yes