What is the LiveCode equivalent property for the HTML <a title="some hover text"> parameter?

[Keith Clarke]

Hi folks,
Trying to replicate HTML <a> links within a LiveCode field. The docs describe 'set the textStyle to link' to create the link <a/> tag itself and 'set the linktext to <uri>' provides the 'href' parameter. 

But is there an equivalent of the HTML link title parameter at the field/text level? There doesn't seem to be a linkTitle property - and Tooltip is an object-level property.

Indeed, are mouse-hover tooltips within a field supported as a native feature?
Best,
Keith..