Support copy when in editing multiple lines

[eskemojoe007]

Probably an enhancement request, but had to disable the package until functionality exists.

When using multiple editor lines (such as using split selection into lines) the default copier is smart enough to copy line by line for pasting, but the clipboard history copy only copies the last line. If my goal was a=a, b=b, c=c, d=d, clipboard history doesn't support this: