On the top left of your view, you can find the cycle menu. It lets you edit different traits of the cycle in general.
Click on the hamburger icon to see the different options:
Notes, for documentation purposes
Settings, to edit the basics of your cycle
Sharing, to configure how other organizations can access this cycle
Scale, to redefine your production and functional units
Focus mode, to temporarily hide part of the UI
Releases, to take snapshots of the cycle
Data Sources, to see which information you are consuming and from whom
A single menu item may contain more actions items within it. Hovering over the menu icons shows the tooltips. Click on the above list to read more about each action.