However, we're interested in two things: a) showing respondents exactly how many items they've already included in each group as they're dragging and dropping, and b) if possible, showing an error message whenever more items are added to a group than allowed (i.e. in real-time, before the respondent even clicks on the "next" button). Right now, we're actually using the PGR question to have people categorize into groups, where the ranking within each group does not matter at all, and as such I made the "ranking" that shows up for an item when it's dragged into a group to be hidden. We could instead just leave the ranking information on the items whenever they're dragged into a group as visible (to have a version of a "count") as that will of course show the items as numbered with a "ranking" in each group. However, we think this will potentially give respondents the impression that they are indeed ranking the groups, so we ideally just want a counter next to each group that indicates how many items have been placed in that group.
As an additional extra feature, if there was some way to have an error message be triggered whenever that count surpassed the maximum amount of items allowed (already specified with validation), that would be fantastic.
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