Hi @JanJo ,
I think I have it working now for external urls. Try it out if you get a chance, there are some ‘how to’ instructions included.
It’s not the most sophisticated solution but it works for me - probably best viewed on a mobile or tablet.
There is still a lot to be fixed, many flaws and a lot of tidying and refinement to be done but it works (for me) as a proof of concept. All feedback welcome - I hope to keep improving it.
There are some really dazzling graphics and popup libraries appearing here now, incredible stuff!