When adding buttons, the app shows instructions on how to add a button.
If you're stuck on this screen, confirm that you have have done the following:
Removed the tab from the Connect Button
Inserted the pin into the pinhole and pushed down
Pressed the Base Button after the Connect Button begins to blink blue
Heard the confirmation chime
Noticed the Connect Button flash green
Waited a few minutes
Try restarting the app. Tap the hamburger menu in the upper left corner and go to "My Base and Buttons." Tap your Base to see your newly added button listed below. You can now continue editing your button.
Newly added buttons will be named: "New Button ID - XXXX"