Display Condition: Show after X content views
If you want to offer a promotion based on the number of views to content and include/exclude rules, this display conditional allows this action.
Editing your popup, then you want to show the Display Conditions.
When you can edit the display conditions, you will want to turn on Show after X content views, then you can input the number of times you want this popup to show.
You then can close the editing of display conditions (top-right corner) and then save/publish your popup.