Should support user filling multiple forms

The idea is:

Wait in “On Form Submitted” mode should support filling multiple forms (so that after filling a form, the next opens), when the input data has multiple records.

Now it has “Execute Once” in settings, but even when it’s off, it does not work,

My use case:

I want it to show multiple forms with files to upload to social networks (X) manually: one file after another.

Alternatively (depending on settings), show a list of forms in a single window.