As I look further into tiddlers, the flexibility becomes more and more impressive.
Anyway - thanks Bob (and Dick). I focused in on this as a learning exercise and glad I did.
Makes it easier to envisage how I want my obs site to look and how I can achieve it.
All I need now is for my new mount to turn up - the old one has been stripped down in preparation so I have no way of operating right now!
Tonight is a really clear night too (a rare one in the UK)- very frustrating!
Ah well
John