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Hi Daniel,

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I think I understand now. In my mind, I was over-simplifying the "single thread" idea.? So was thinking that the "Execute A after......" would block the thread for ten seconds, then execute the "return" and only then would the next ConditionalNG get access to the thread and be able to run. I think your "only one ConditionalNG can run at a time. So they have to wait for each other" threw me a little bit.

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Internal Sensors coming right up!

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I agree that implementing "wait" would be wrong!

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Please may I also ask the best way to introduce a variable into the "Execute A after....."?? I have another ConditionalNG, again running only at startup. It requests that various Turnouts move to their startup positions and, obviously I don't want all the servos to move at once, so have used "Execute A after...." to set a turnout, then wait, then set another turnout and so on. Empirical evidence suggests that is working fine!?

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I hope that is a legitimate use of "Execute A after...."!

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But I would like to avoid repeatedly hardcoding "1" in each of the many places where I am waiting. I tried adding a Memory Variable......

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.....with the intention of then having something like:

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But, there doesn't seem to be an obvious way.? Trying "reference", unsurprisingly won't save. Trying LocalVariable or Formula save, but then fall over at run-time, again unsurprisingly as I have a Memory Variable not a Local Variable or a Formula . If you have time, it would be great to have a view on how best to introduce a variable (which ideally needs to be visible across multiple ConditionalNGs).

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Thanks, Nick

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