Assign Insteon Devices to your Remote's Home Control Buttons
From the Harmony app, open the settings drawer
Tap Harmony Setup
Tap Add/Edit Devices & Activities
From the Settings screen, scroll down and select Remote & Hub
Tap Harmony Home Control Button Customization
Tap Home Control Buttons
Tap the button for which you would like to assign an Insteon device and then tap the Assign button to chose an Insteon light or appliance.
Repeat these steps for the four Home Control buttons and, when finished, tap the next arrow.