Please consider adding an option within the grouping that is displayed when selecting a multi-select field - that allows them to select how they want to group:
records with 2 or more options in the multi-select can
  1. show up in each individual grouping
i.e. a record with multi-select values of 'apple' and 'oranges' will show up in both the apple and orange groupings seperately.
  1. show up in 1 grouping
If a record has a multi-select containing both values 'apples' and 'oranges'. "apple & oranges" should be in a group of its own.
Created by Nate Montgomery @ SmartSuite
·