I have a frame I am making as a weldment and have found a few things that I have questions about. In the view below I created one 3D sketch to drive the whole model. Then when creating the cross bars I could create tubes 3 and 4 in one group but could not select both 1 and 2 in the same group but needed to create them separate. What would be the reason for that?  When creating the horizontal and vertical parts they came in square to the frame but I had to rotate the angled parts, easy enough to do but it takes extra time, is there something i need to edit to have them come in as desired from the start? Then when trimming the tubes I was able to get the vertical and horizontal parts to show correctly but while the angled parts show the trim location, they still also show extending into the part and I can not get that to show correctly. Am I missing a step?