It would be awesome if revealing polygons using the shift key to fix them to map grid would work on hex based maps. You can draw hexagon shapes on the map layer, the icon layer and the DM info layer. But on the token layer when the map is hidden, revealing areas using the shift key for grid's uses some sort of underlying square grid. So you have to guestimate hex grid stuff, which is doable, but a massive pain in the ass and a lot less clean. Since drawing works for the hex grid, it shouldn't take much to make revealing operate the same way!