Hi @Richard from Dorset ,
Unfortunately, I had tested on my side, there is no way to use "hide the Open/Open download file" feature in kiosk Edge.
We recommend that you could submit a feature request to the Dev Team by sending feedback(Press Alt+Shift+I) in Microsoft Edge.
By the way, according to your description, you could edit the Edge Browser shortcut to achieve page forward/goback in kiosk mode.
- Right-click on the Edge shortcut and select the option Properties from the menu.
- Under the Shortcut tab, navigate to the option Target.
- Add the "
--enable-features=msBackspaceKeyNavigatePageBack" flag. Then Click on Apply and OK.
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