Dear all,
I'm finding a solution for a phone screen, when the user scrolls down then show an icon on the bottom right so when the user clicks on that icon the page scroll to the top .... ???
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I don't believe there's currently any interface component that enables this behavior. It's been asked for before, iirc - your best bet is to open a support case with Appian and describe your use case and hope they'll prioritize any existing product enhancement tickets they may already have on the product backlog that corresponds to the requested behavior.