like in other 3d programs i can use the spaceball to control the camera
with the spaceball i can zoom in , rotate, moving forward , backwards, sideways , tilt, pan..and i won't have to use the mouse or keyboard
other thing i am hoping of are
bend
animation
bones
and when i draw a line, or sketch a line, i can what it says in rhino3d extrude ribbon..that the line is made wider in the amount of units or grids i type in
for example...i want to make a road, so a draw a bended line , up , down, going to the left and right, then i extrude( ribbon) the line 10 units(grid) wide and the i have a road after that i want to extract the road to its good thickness
sorry for some bad english
this and some other things would make ac3d almost the perfect level editor for darkbasic, blitzbasic, to name a few