The OR That

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I've noticed that when building requirements, it is really, really easy to add requirements in a "THIS and THAT and THAT and THAT" fashion - so everything in the list has to be in place or an exclusion occurs.

What have not seen is a situation where I can require "THIS or THAT or THAT" - where having any of the prerequisites will allow selection/use of the thing in question.

Is there an OR operator and, if so, could I get an example of it in use?

BTW, the closest thing that I have noticed to an OR operator is a clever use of naming conventions and the "?" wildcard for name testing.

Thanks,

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