Changing form link on a form part

I have a form part setup containing a grid which displays property units related to the property being displayed. The properties are linked to a project through the project id and the units are linked to the property by project id. My problem is that in the grid the project id is presented as a link to the proptable form and I want this to link to the propunittable form. Is there a way to override this?


Is it possible to change what form a field hyperlinks to?