when i acces the bill of materials from the assambly menu, is there any way to find out how many total parts there are in the entire assambly. Right now it's sepereated into sub assamblys, so if i have one size screw in 4 different sub assamblys it will show it in 4 different places on the material list. Rather then going down the list and adding up the quantities manualy is there any way to condence it all down.