“Image Map” was a very useful function to get lots of clickable things happening in a small area. Why is that gone now? Or is it replaced byt anything similar, maybe even more useful?
image Maps still exist.
However, there are no built-in functions for this in Blocs.
Try
and insert the code with the HTML widget, you may have to adjust the path of the image manually.
OK, I mean a built-in function for something like this. No coding etc 
I can understand what you mean, I used Adobe Go-Live in its day and image maps were so easy. One of the best sites I built at the time was for a musician, he wrote and performed some excellent children’s songs about farm animals, his site was a cleverly illustrated map of a farm and clicking on the appropriate animal would play a preview of the song. It wouldn’t be so easy to do that in Blocs, but then I haven’t had the need to do anything like it since!