VisualFormat

System

Does anyone know:
1) How to determine the current location of the cursor within a piece of text included in a VisualFormat field?
2) How to reproduce the out of the box functionality with VisualFormat where the cursor is positioned within a link, the link edit button is thrn selected and the entire link is automatically highlighted. We have written our own link handler as we have a specific requirement, but have been unable to find how to provide this out of box selection functionality.
Thanking you in advance :-)