So I am working and a board game, in which the board is an overhead view of a cavern, obviously with no ceiling. the map will consist of 4 areas , each sunken lower then the previous, connected by paths. Now I am not currently interested in learning all of the features of this clearly excellent software, but I was hoping someone could give me some pointers on what I need to know. I need minimal shading, a sense of depth for each area, and the ability to make it all look kinda grey. Playing around with the software, i had a real hard time with flat floors. Thank you in advance for your help