I have customized the touchbar for some of my apps using the XML schema described above. This has really improved my productivity using Windows Apps. Thanks for including this capability!
One thing I have tried but failed to accomplish is a button with "touch and hold" capability as described from Apple (https://developer.apple.com/macos/human-interface-guidelines/touch-bar/touch-bar-architecture/):
"Touch and hold. Initiates a secondary action on a control, such as a button. For example, whereas tapping the Flag button when Mail is active adds a flag to a message, touching and holding the Flag button displays a modal overlay that lets you choose a flag color."
The closest option available is the Popover element with the PressAndHoldTouchBar subelement. The problem is I do not want the popover feature. It would be nice if a PressAndHoldTouchBar subelement could be associated with a Button element.
Is there a way to do this?