Do you know about CSS “@media print”? This lets you restyle the page only for the printer. There would be no need for a popup.
Also I just tested printing a page in Lectora 17.1.3. It seems like Trivantis changed the “Print current page” action and integrated some modifications to the page before printing, e.g. it’s left-aligned automatically.
I don’t know which LMS you use. In moodle the following worked:
Open the Popup with a standard “Open page in popup” action
The button in the popup does:
- Exit title / close window