Pasting in a different key/octave

I just entered a few measures in the wrong octave, and wanted to try and move it, but there doesn't seem to be an option to paste into anything but in a blank location and original key. "Transposition" just changes the octave written, not the actual played notes.
On a related topic, can you transpose a piece? If I key in a chart, and then find that it sounds better (or is more singable) 1-2 steps up or down, is it possible to shift everything or do I have to re-key the whole chart from scratch?
Thanks!
On a related topic, can you transpose a piece? If I key in a chart, and then find that it sounds better (or is more singable) 1-2 steps up or down, is it possible to shift everything or do I have to re-key the whole chart from scratch?
Thanks!