[TxMt] Rectangular selections paste badly

[Drew McLellan]

I just make a rectangular selection of a column about 20 lines long, and 
copied it to the clipboard.

Pasting this further down the document failed to create the extra space 
needed for the code being pasted, and effectively 'merged' the pasted 
code with the existing code following the insertion point.

Hard to explain. Will screen shot the steps if necessary.


drew.