Creating a panel used by multiple activities

Is it possible to create a panel that is used by multiple activities? For example, I would like to create a panel for selecting the various sound processing modes for my Yamaha receiver, and be able to access that panel from different activities such as “Roku”, “Apple TV”, “CD Player”, etc.

That’s called a Popup Activity. Just flip that switch in the Activity and then reference it from anywhere you’d like to pop it up.

Thank you.