I seem to have been clicking random things as usual, and by accident I have got two element's unwrapped on UV Channel "2" and then rest of the object unwrapped on channel "1". How can I merge them together?
you can detach the parts of your mesh that are unwrapped in the 2nd channel, copy it's 2nd channel to it's 1st channel (menu -> tools -> channel info), then attach it back to the other half of the mesh.
Replies
reset your UVs
As you can see, apartently it is on Channel 1... But UVW Editor says it's channel two...
Looks like it is all on UV Channel 1.