Hello Gubar, you really like the channel box, ey? :p
To be honest with you I rarely have it open at all. It's useful at times like setting up image planes though. Let's say your referrence image is 800 by 640 pixels yeah, so you make a plane with the dimension 8.0 by 6.40. Add the material with the referrence image to the plane. Do the same for any other ref's etc. At this point you don't need the channel box anymore.

So now you have at least a front and side ref up yeah. Now you have several options. With the scale tool, size up or down each plane uniformly, or you can group the two planes together and scale the group uniformly. Technically you could use the channel box, but it's just slow and tedious as you have to manually calculate the new image ratio. Slow and a bit pointless.

Before you group the ref's make sure both image planes line up the way you want them. Center line and the feet with the grid for instance.


>Finally, how do I ensure that they remain visible after >resizing?
I am not sure I understand or recognize this one. Could you ellaborate?