hi there, sorry for the bombardment of questions. 

so i want to know how to create a cabinet slope using measurements from a drawing for example i need a unit to fit a loft conversion the size i need is 600 deep x 600 wide x 2000 front and 1600 back. i want to be able to input these measurements to give me the correct amount of slope. at the moment i am pulling the point around on the slope mode and guessing my way to my desired measurement’s but i have seen a very old video on YouTube doing this by inputting the measurements but on the updated software i don’t get these options.