This is something we definitely would like to do, just figuring out when we can fit it on the roadmap.

In 2019.3, we've added the ability to reorder the host page navigation panel. 2019.3 is currently in preview if you'd like to try this feature. You can make Access the first option and then it'll default to that tab. https://docs.connectwise.com/ConnectWise_Control_Documentation/Release_notes/ConnectWise_Control_2019.3_Release_notes