Set map rotation property in Map Viewer Beta

[Joshua-Young]

I think it would be very useful to have a map property that lets you set a specific map rotation. Then have a second map property to prevent a user changing the rotation by interacting with the map, but still let the rotation be set or changed using the map rotation property.

This would be helpful for maps that need a specific rotation that should not change. For example the roads in my town generally run NE/SW and NW/SE so there are times I get requests for maps that are rotated exactly 45° to have the roads run up and down and side to side.

[LCTechLogin]

This would be helpful for my area too - we have to rotate paper maps by 1.85 - which is just enough to make things look "wrong", since all the roads are at a slant.