It would be nice if there were a setting that would allow for keeping the multi-select box open instead of having to click into the box for each subsequent select.
Woah - Don't know what I was on, but that title should be KEEP the multi-select drop-down window [after open/selecting the first option] Having to click repeatedly is a touch annoying.
Note that you can use Ctrl+click (or Cmd+click for Mac users) to select several values.
That would defeat some of the usability that this multiselect replacement is intended to offer. Average users of a babyboomer demographic are not familiar with that type of functionality.
#529 (not merged) addresses this.
while it works fine at the chosen site on my site holding down CTRL does not work.