I was wondering when it is a node you insert is able to snap to an intersection? I think what I am seeing is that if 2 shapes intersect, the node will snap, but when a single line is drawn to intersect, the node will not snap?
Also is there a way to change a shapes dimension just on one end, like you do when you drag its handle, but with the accuracy of entering the new dimension in the shapes width field?
And finally, in what circumstances do I want to use close path and auto join shapes? I seem to have a lot of trouble getting open shapes to properly close. If I draw a few shapes and break them up, then try to connect them by dragging and snapping, I often have to go to nodes, drag them away from where they were seemingly connected then drop them back onto the same spot, then the lines will join.