So I've gone to the bottom of the class for not reading the help topics. I feel suitably ashamed of myself.
I've given myself a bit of a pep-talk and I think I'm right now.

Attachments
20200314_142859 L.jpg (181.09 KB, 182 downloads)
20200314_142906L.jpg (254.06 KB, 181 downloads)
20200314_145947 L.jpg (262.89 KB, 182 downloads)
20200315_104112 L.jpg (378.3 KB, 183 downloads)
20200321_120708 L.jpg (258.61 KB, 182 downloads)