I meant CTRL-click, sorry.
Yes, it is nice that the 'mailto//' ... schema(?) works as well.
I have previously mentioned that the treatment of 'file://' is a bit iffy ... it does not work as expected in all cases (for me, under Linux). It would be nice to sort things out so that I could past a file link (preferably with spaces and non-ASCII characters) into Leo and have a CTRL-click do 'xdg-open' appropriately. I started looking into where the current limitations/non-conformities lie but it was a bit too much of a twisty maze of passages for me at the time.
J^n