Access variable constraints of a 2D profile from a parametric solid using item types

Hi all,

I created a parametric solid from a 2D profile, what i would like to achieve is to access the distance constraint "Dim" I added to the 2D profile to make the parametric solid. I want to create an item type expression to access it, is this possible at all? 

I'm using Microstation Connect U16.

Best regards,

Cris