The Create Slots tool is designed to make recurring job slots in bulk.
First select a Job, then assign the other properties of the slot to be created; these are the same as are used in slots elsewhere in VSys.
Click Test. This shows you what slots the rules would create.
If they are mostly accurate, edit the slots by clicking on the grid. You can change their Date, Duration, Action ("Create" or "Delete"), Count, or whether they're visible on VSys Live.
Click Save to create the slots and the recurring rule behind them.
If you don't click Save, none of these slots actually gets created!