Ability to Copy / Paste / Duplicate Maps

[RandemGamor]

Is your feature request related to a problem? Please describe.
Nope

Describe the solution you'd like
I'd like to be able to copy / paste or duplicate maps and/or their properties.
Having to manually change the properties of every map is a very tedious process.
Thanks :)

Additional context
Add any other context or screenshots about the feature request here.

[Cheshire92]

We've had a discussion about this at some point and rather than copying them we thought a more elegant solution would be to allow users to make templates of map properties.