Add multi-select for filters

When I'm filtering on the participant list, I need to be able to select more than one of an individual filters. For example, under

  • Samantha McGuin
  • Feb 26 2019
  • Reviewed: Voting Open
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  • Mehgan Bechtel commented
    20 Oct 00:44

    I don't know if this was supposed to be "select more than one of an individual filter - example 2 or more participation levels" - but that's what I want to be able to do!

  • Alex Bishop-Thorpe commented
    February 26, 2019 23:06

    I would also like to see this functionality for filtering on Categories for the Events list itself. For example I'd like to be able to filter to see Fundraising Solicitation and Fundraising Stewardship Events, but not Bequest Cultivation Events.

     

    Right now it's "all categories" or "one category". A "some" option would be wonderful :)