Multi-select is only possible in the right pane. So you need to:Originally Posted by Ron_Thorne
1. click the folder that contains all 4 items. That will display them in the right pane.
2. IN THE RIGHT PANE, HOLD CTRL KEY and click each item. They will multi-select.
3. When all 4 are selected, click Tools -> Make Box Set.
It's actually very simple, you just need to do it once to get an idea. BTW, multi-select using Ctrl/Shift keys is a universal thing and works in virtually any Windows program.
Andrei