Hi @violandre01
Please have a look to this workflow, these are just the basics.
20220928_bar_charts_2.knwf (80.1 KB)
In the current chart you can deselect the questions by clicking on the colored legend. Otherwise I aggregated a column filter for sending only the question that you want to display…
Some more automatization can be done to be incorporated within a ‘Component’, but we don’t know about your use case.
BR