Access the Watch app on your mobile device.
Go to General within the Watch app.
Enable Automatic App Install in Watch App -> General.
Update the Swiftlane app to the latest version (1.67(409)) from the Apple Store on your mobile device.
Once these configurations are made, keep the Swiftlane app open on your mobile device, then access the Swiftlane app on your Apple Watch.
When you open the Swiftlane app on your Apple Watch, you'll see a list of doors that you have access to remotely unlock.
Please Note: Doors with nearby access will not appear on your Apple Watch. Only doors with remote unlock access will be shown.
To unlock a door, simply click on the door within the Swiftlane app on your Apple Watch.
Alternatively, you can unlock a door using Siri:
In the Swiftlane mobile app, select the door you have access to remotely unlock, and the door details will appear.
Select the option to "Add to Siri".
Configure the phrase as desired, then click "Done" once the phrase is set.
On your Apple Watch, long-press the button to launch Siri and say the configured phrase to unlock the door remotely through your Apple Watch.
Example: "Open Front Door."
Video Tutorial: