Hi!
I was wondering what the status is of this request:
Currently I’m working on a custom heading element based on the default cornerstone element to limit options for clients and set it up more as a single source solution. The heading needs a URL option, which currently leaves the Link checkbox always on in the source heading element. This means all our headings are inside an A tag, even when there is no link present on the element.
I read that it was on the list for the 6.7 release, so are there any updates on this? I would love to toggle functionalities on or off inside elements with parameters and use the default elements rather than building it up from scratch.
Thanks! 
Edit:
The A tag generation can be fixed with whitespace checking using twig, but toggling seems like a cleaner solution:
{{- param.link ? param.link.linkType ~ param.link.link -}}