Hi Sebastian, for MoI v3 see here for how to do it: http://moi3d.com/forum/index.php?webtag=MOI&msg=5319.2

MoI v2 is slightly different, there are instructions for v2 here: http://moi3d.com/forum/index.php?webtag=MOI&msg=2580.2

I do want to work on making a draggable width for this in v4 as well.

- Michael