To add filters
Simply click an event you want to apply filter.
A Filter Creation tab will appear which you can edit based on your preferences such as Excluding Offers, Sections, Rows, Min. seats, etc.
Below the Notes there is an button that you can click to add the filter where you can customize freely depending on the event buy criteria.
Using will save the current settings instead of resetting them. So, if you've already created a filter, you can tweak it or add new filters without starting over from default each time.