I did the change the names (not that much of a novice!) but no, I didn't have the form open, but either way, the route I'm currently going (with update queries) has meant I've now got them all combined and cascading via a control box-macro (bookended by warnings on/off) - and I'm liking how it's working as I'll need each "step" to be singularly configurable as the "frontend" I'm building will need to factor variances in the similar, but not identical, backend DBs. So for now, happy. Cheers for the help.

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Reply from Alex Hedley:

Just needed to check in case, no offence meant by it.
I sometimes assume knowledge and it isn't there yet or vice versa.

Great you've got a solution working :)