Partially Disable Multistate Button

Ignition
,
1

Can I partially disable a multistate button?

For instance I normally want this multistate button to assign a value of 0, 1, or 2 but there are instances where I want to disable the 2 option.

Is that possible, or will I need to come up with a custom solution?

2

Plan on something custom, as you likely will have to handle the case where an option is forbidden by conditions after it is already chosen, or even in use.

3

True. I'll probably have to do a property change script and just force it back to the previous value when "disabled"

4 
if event.propertyName == 'controlValue':
	if event.newValue == 2:
		if event.source.parent.parent.getComponent('eqTypeCheck').disable:
			event.source.controlValue = event.oldValue

Getting a "can't coerce None to int" error on line 4. Not sure why.

Edit:
I have the indicator bound to the control value, so if I use

if event.propertyName == 'indicatorValue':
	if event.newValue == 2:
		if event.source.parent.parent.getComponent('eqTypeCheck').disable:
			event.source.controlValue = event.oldValue

It then works without the error