It could be an option, if the “toggle taxi arrows” button toggle the arrows or the map.
So, the new option should be named sth like “ toggle taxi advice” and below is the possibility to:
“taxi advice toggles arrow or map” …
If you want to make it perfect: you could also implement the possibility to have arrows as it is now.
AND a new option that taxi map is automatically be switched on when pushback is requested.
Would be my favorite