Track when Document Changes

Hi all,

Any idea how to trigger an automation when a Monday document changes? Not the column itself (this would only trigger on removal or addition of a document).

What I need is to update a column with a date and time when a Monday document is edited.

I cannot use a formula to extract this, as the document column is not available in the “Columns & labels” dropdown.

Grateful for any inspiration/suggestions.

Thank-you.