Welcome! You can’t do this with the official features, but it’s a particularly popular request, and there are several community members who have created custom code that can handle this very well.
If you haven’t used custom code with SmartThings before, read the overview faq and it will explain how the process works. It’s pretty straightforward, basically you just cut-and-paste someone else’s code into your account.
If that sounds like something you’d like to try, you can use the quick browse lists in the community – created wiki in order to find smartapps for specific use cases, in this case locks:
