locking coordinates for multiple map layers downloads

[BernardoI]

Hi! First of all a huge thanks to domlysz for giving us this great addon, it's amazing!

I would like to know if there is a way to "lock" the portion of the map that I wanna work on while downloading base maps. Reason being, I want to download different map layers (and I'd like to be able to download always the same exact portion of terrain, so that I can use them on the same mesh.

I know that as long as I don't zoom or pan in the viewport, the terrain portion will be the same, but it's not the most reliable way, it's quite easy to lose the point, or maybe I would like to go back to the same portion to download more data later on.

Also, is there a way to download several map at once?

Thank you!
Bernardo