Add "Save current and Load different map" button in confirmation dialog "confirm that you would like to load a different map".
If I try to load different map and I did not save current map, I have a message:
"There are unsaved changes in the current map. Please confirm that you would like to load a different map."
And I have a buttons "Load anyway" and "Cancel".
If I want to save the current map, I have to press "Cancel", "Save", and select different map again.
We need a new button "Save current map and Load different map" to quick switching between maps.