Control inline viewing of PDFs for better UX & performance

A feature upvote gave us the ability to view PDFs inline... now the issue is that all PDFs in a note try to render simultaneous - the result is not good particularly when multiple large PDFs are present. We simply need better controls here that can manage if, how and where PDFs are rendered:
1. the conditions when PDFs should be rendered in the note: on request, only if on-screen, render in line if < x Mb, render all inline
2. the location where the PDFs are rendered; PDF's should have an option not to open inline but e.g. in bottom tab window (Hidden Complete Backlinks *Attachments*) or in "peek viewer" window on right as options. In summary the default should be a new bottom tab window called "Attachments", Peek Viewer, Inline, New Window.
Please see also https://amplenote.featureupvote.com/suggestions/128011/viewopen-pdfs-inline-within-note-no-separate-download that gave us inline viewing, I will backlink from there to here...