To set your default model that the Benefits Hub and other pages default to you can set this at the top of the Benefits Hub screen.

Benefits Hub > Set As Default Model.

This saves time and allows to see the most important data to you as you navigate around the System.  If you are working at the organisational level and you tend to move across programmes and projects at different levels you can use this feature regularly to allow you to dive into one model one day and another then next.