Hi, This is probably a very dumb question, but here it is: I wish to work in milimeters in Plant 3D for structure and equipments, while still using inches for piping. I tried using the "units" command and setting the program to milimeters, but when I make a cylinder with a diameter of "104", which should be around 4 inches, I think the program takes that as 104 inches, because if I try to model a 4 inch pipe on that, using the route pipe 4 inches icon, the piping comes out much smaller than the cylinder. I don't know if I am using the right command to change the units the program puts into the drawing, seeing I am no veteran at autocad, or if it even is possible to work with multiple kind of units. To sum it up: I want to set a circle base of 104 mm then make it a cylinder and from there route a 4 inch pipe. Is it possible, and how so? Thanks