**This is an old revision of the document!**
The Button condition looks for a standard Mac button in the front window.
It can find a button with a name that is exactly a specified string, containing a specified string, or matching a specified regular expression.
The condition can return true if:
a matching button exists.
a matching button does not exists.
a matching button is enabled.
no matching button is enabled.
a matching button exists but is disabled.
a button (usually a checkbox) exists and is off.
a button (usually a checkbox) exists and is on.
a button (usually a checkbox) exists and is mixed.