How to make a list of check boxes where exactly 2 must be selected at all times?

I want to have a list of checkboxes or radio buttons, where exactly 2 options must be selected at all times. At the present time, the list has between 2-4 options enabled (according to other parts of the program). How is that possible?

-James

Sorry if this seems obvious - I couldn't find apparently relevant information on this topic.

Here's a simple demo using Enums and the disabled items property.  You can extend the method to disable the value 2 and set of waveform to 0 and 1 when necessary (attached to 8.5) PNG of 2011 (not an extract due to p-nodes)

Tags: NI Software

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