answer:Under the Sort & Filter options there should be a “Custom Sort” item. Go to that, then in the resulting window, click the down arrow under “Order”. There should be a “Custom List…” item. In that resulting window you can add you own custom sort list with whatever order you want them to be. So, in your case, I would add all the LS, CH, and other items in alphabetic order, but then put PT at the top. Let me know if that works out for you.