David,
Here is an approach.
In a single tiddler define a button for each of your three or more states. One
button shows the current state but clicking it selects the next state.
Now with list or reveal widgets wrap each button with a conditional display
such that it only shows with the appropriate value(s) present.
All that will show is the button with the current state so it looks like one
that changes a setting with one click.
If you are using a tag or field you may need to include another button or add
another condition to display the first button even if no value is yet set.
Then transclude your button where needed {{||buttontiddler}} to act on the
current tiddler.
You could tag it so it appears in a toolbar but a little more work is needed
to provide captions and tootips.
Is this an approach you can use?
regards
Tony
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