Hi. For now, there is no way to add a link to part of Lua SVG. Only ImageMapEdit, but this is too cumberstome. This can be very helpful, if there would be a simpler way. Something like this:
local svgstring = '<svg ...>...<circle cx="100" cy="300" r="50" wikilink = "Talk:Main Page"/>...</svg>'
The translation should be straightforward, to
<a href="https://en.wikipedia.org/wiki/<wikillink value>"><circle .../></a>
I can understand why htpps links can be dangerous, so I'm talking about wikilinks only. You can decide to allow interwiki links too, of course, if you think it will be OK. But at least local wikilinks are fine for sure. Thank you.