Would love the ability to create multiple grid layers of different sizes.
5e travel rules dictate hex sizes for certain map scales (60 mi / 6 mi / 1 mi) and it's useful to be able to show smaller hexes within the larger ones.
Currently to display multiple grid layers, I have to trace over them using the path tool, which is extremely time consuming. The option for multiple grid layers could make detailed hexmaps doable in a matter of seconds or minutes, rather than hours and days.