I have a big map with several layers. I want to extract a small area in the map and merge the layers.
I tried to merge the layers and than to select the zone I am interested, but the merging is impossible due to the size of the original map (the algorithm started and after 20 minutes it was at 1%)
Is it possible to select the same area from multiple layers and create a new merged layer (without extracting zone from the original layers one-by-one) ?