I was digging chests a bit ago and noticed that the small map didn't enlarge to the same size as the TMap. Makes it a bit hard for me, old eyes ain't what they used to be.
I'm thinking about a feature for the Atlas, where you pick a tmap and creates an overlay half-transparent with the same zoom, and you can just drag the world map to search the same area. Maybe even a button to create a way point in the digging location, to be clicked when you think the area is a matchI like the big tmap, but I'm having difficulties dragging it out of the way when it's time to dig.
About the big tmap, you don't have to keep it big, just use the zoom with the scale mode off