Restrict the use of SiteOrigin PageBuilder to a landing page template

Hi, I would like to restrict the use of the PageBuilder to only certain templates.
The PageBuilder is great for creating landing pages but my editors start using it for really simple pages with just a bit of text.

So it would be great if I could turn in on on only specific templates.
A bit like you can now choose to show the PageBuilder only on certain Content Types (e.g. on pages not on posts).

Can you perhaps point me to something like a filter or action to make this happen?
That would be great.
Thank you,