As a MicroStation modelling user, I would like the capability of filling the Distance field by picking two points (or distance between other elements) from within the tool, so that I can be much quicker in creating solids and other elements where the distances are unknown and need to be measured.

Ideally there would be an option to make the distance associative.

Now you need to use a separate tool before entering the modeling tool, which slows down the work.