When working with banner tables, or tables with spans, it should be possible to match the column(s) or row(s) to select using a control by partial labels. That is, if the combined span and column label is "attribute A - brand A", "attribute A - brand B" and "attribute B - brand A", "attribute B - brand B", and the control selection is "brand B", then all columns from all spans should be returned with the "brand B" data with the "attribute" labels.

Currently, I have to write high-complexity R code to modify a visualization where I want this to apply, so that I don't accidentally lose significance testing if I go via other R calculations or outputs.