You can create new spaces and add existing boards to them
By combining boards from different spaces you can organise dashboards and bird's-eye views. All changes on the boards are synchronized
Open the menu on the left.
Hover over the name of the space where you want to add the board. Click on the plus to the right of the space name.
In the menu that appears, click "Place existing board"
In the window that opens, select the name of the desired board and click on it. After that, the board will appear in the selected space.