Selecting multiple elements and moving them at the same time

[rozaru]

Is there a way to move multiple elements of a GO-CAM model at the same time in the pathway editor?
For example, when you want to move an activity unit with molecule units linked to it you can only move one of them at a time.

A similar issue was raised in 2017 #479 (now closed).

Thank you

[hattrill]

tagging @hattrill, @sjm41, @gantonazzo