Yes. There are 2 ways to do so.
1. Using Salesforce authentication
Select Salesforce authentication
from the authentication type drop-down,
then enter your username, select the org type (if you are not sure which org type you have please read this article first) and click Authorize
.
On the login page, select Use Custom Domain
Enter your custom domain and select Continue
to enter the username and password.
2. Using My Domain / Government Cloud
Select My Domain / Government Cloud
from the authentication type drop-down, then enter your custom domain information and click Authorize
.
For more information, see our guide on managing org connections in the app.