Removing SHM from Classic App Routines

Prior to migrating to new app I want to modify routines in the classic app that set SHM. There is an option in Routines to Set Smart Home Monitor To. Options are stay, away, and disarmed. However, once an option is set there does not seem to be a way to remove the set option. You can only select one of the three options. Is there a way or is the only way to recreate the routine without ever setting the SHM option? What if I delete SHM from Classic App? The only issue might be is that I have SimpliSafe and the DTH controls SimpliSafe by checking the status of SHM. Thoughts? Thanks.