Flat View without files (2)

Hi all,

I would love to use this button. Unfortunately, the linked instructions seem to go over my head. It is also not clear to me which exact part of those instructions should be followed here.

I already tried the script code with both variants "JScript" and "VBScript", but the button doesn't seem work either way. Instead, "Script Error" is displayed in the status bar when clicking the button.

Thanks for any assistance!