I have submitted this via the feedback but thought I'd share as well as it might encourage others to share their feedback on the dashboard.
1. When assigning a sensor to a switch can the default sorting order be alphabetical, currently devices are not sorted and there is no option to. Yes there is a search option but being sorted would be quicker for those that only have a handful
2. When adding/removing tags to SM devices the drop down box awkwardly covers the save button.
3. Historical device data, the current options seem limited, the difference between two hours and a day it quite a lot if you have a problematic device. It would be useful to be able to search a period of time within the past 28 days.