In 6.4 beta 5 on Windows 8.1
If I enter "open esv" in the command box I can drag the resource to any panel I choose
If I enter "open esv to john 1" I can no longer drag it
(This isn't specific to the ESV but is the same in all Bible resources I have tried)
So it seems as though including the reference removes the "drag" placement option.
Can anyone else confirm this?
Thanks, Graham