For VTO and Vacation, the builder just starts with your hours/6 and put that in to the schedule. 7 Days of vacation for 42 hrs, and then build to make the rest of the BLG. You can not go in and pick trips and then conflict them with vacation. You are better off taking the reserve line, knocking out the required days. If you are a gambling man, then you can try to drop R days and work open time. Good Luck.