Could you add a configuration option to show or hide last activity timestamp on a tile? This would help in monitoring activity that may have passed recently, like for motion sensors. I may not see any motion, but I can tell something moved recently by the timestamp.
Also, please add configuration option to enable or disable confirmation. For switches, it's not necessary to confirm the action.
For locks, rather than a confirmation, maybe having an authentication requirement. For example, first time a dashboard is used (I'm thinking of this via the mobile app, not website), locks and maybe other device types like sirens, would require a pin code (maybe for locks the existing lock code rather than another pin). Then user can specify how frequently that authorization is required (everytime, 5 min, 1 hour, 24 hour, never ask). This would prevent someone from using the app to unlock the door, but make it convenient for owners to avoid having to authenticate multiple times in a day.
Lastly, it would be nice if there is a configuration per dashboard for tiles to auto-arrange themselves. If I remove a tile, the tiles after it would fill in the missing gap. Same thing when moving a tile in between tiles. It would insert itself rather than how it overlaps currently.