This is an older (maybe 2010) model of a chassis from my design library. Whenever I opened it in the past all of the "2U" derived configurations would be at the bottom of each list, but hitting rebuild would reorder them correctly. Now with 2017 SP2.0 they stay at the bottom of the list. The Numeric or Manual options under Tree Order don't seem to work. With Drag and Drop enabled I can't move any of them unless I'm doing something wrong.