Many thanks for these responses.
On the particular Copy/Paste comment Rharv you can tell PTPA to copy a selection of MIDI bars as many times as you like in the 'Paste' window, but I'm sure you knew that!
I've got a lot of catching up to do...stayed too long with the same setup.
I don't know what VST1 and 2 are, never mind 3!
I'm making (slow) progress with Reaper. Very friendly and helpful forum there too.
I take the point about all the DAWS being different - so far I've looked at StudioOne and Reaper.
Marc