You can do it from the api like this:
https://graph.api.smartthings.com/api/smartapps/installations/{your SHM ID}/dismissIncident?name=Security
Not sure if that is what you are looking for.
You can do it from the api like this:
https://graph.api.smartthings.com/api/smartapps/installations/{your SHM ID}/dismissIncident?name=Security
Not sure if that is what you are looking for.