Question about two legacy JavaScript view options in KNIME 5.8.2

Hello,

I am using KNIME 5.8.2 and have a question about two legacy JavaScript view options.

I reviewed the descriptions, but when I enable or disable the following options, I cannot clearly see any difference in the interactive view.

1. Pie/Donut Chart (JavaScript) (legacy)
Enable Frequency Column Chooser
My understanding is that this should allow interactive switching of the numeric column used for slice sizes, but I cannot see where this chooser appears or how to verify the difference.

2. Stacked Area Chart (JavaScript) (legacy)
Enable interactive guideline toggle
My understanding is that this should allow toggling of the interactive pop-up in the chart, but I cannot tell what changes when the option is enabled or disabled.

Could someone please clarify how these options are intended to work and how to verify the difference in the view?

Thank you in advance.