Tom,
Just saw your message as I was about to a-bed.
Didn't intend to imply you were putting anyone off - to the contrary, with your help, I've managed to get started with PP and am impressed so far - was just trying to encourage others to make a start - without getting bogged down in the technicalities...
Many thanks for your advice as to how to use storage slots A,B,C and D - ie for configurations not maps/charts!
Will follow up your recommended wiki link over the weekend.
Going forward, perhaps we need to have a separate thread for 'advanced' mlat problems etc and another one for PP newbies?
Cheers
Chris