Currently I have Nintex Form with a repeating section containing mutliple fields, among a few dropdown ones. Now the user wants to remove values (in the lookup list) and replace them with other, without selected old values in existing documents not to change. So my first thought was to replace the 2 involved dropdowns with a text field and populate them by clicking a button showing a popup with the latest dropdown values.
How would I do this, most likely using some custom JavaScript? Any other possible solutions are also welcome.