Feature request - force cached map update

Can you please as a check box on flight plan below map choice that forces cached map update per session.
Sometime you do not need to delete all cached maps and you just need to force update if no errors occurred.
When checked it forces getting the new tiles while you browse the map if - and only if - it could get new tiles successfully.

Start by locating the flight-plan map-choice control and the cached-map tile retrieval path described in the issue. Check how map tiles are refreshed during browsing and determine how a per-session checkbox would be represented. Done means the option is available below the map choice and refreshes tiles only after successful retrieval, without requiring all cached maps to be deleted.

Written by the indexing model from the issue text.