Add to clipboard

Is there a way to add items, to already placed items on the clipboard. It seems I constantly run into the situation where I select a bunch of items, copy them to the clipboard, only to realize that I left out an item. It would be nice to be able to just add that particularly item to the clipboard.

Hi Dennis -

! Select Pause
SetRedrawOff
Copy InPlace
Paste SelPrev
Cut
SetRedrawOn

-Pascal