How do I turn off setup mode in a new organization?

When you create an organization with GlassFrog, by default you start in setup mode
You can either start building your organization with it or get out of it by choosing to start with the Holacracy Constitution v4.1 or v5.0. 

How do I turn setup mode on/off in an already-existing organization?

If you're an admin of the organization, you have the ability to turn setup mode on and off.

Step 1: Go to your Admin menu and select "Organization Settings".

Step 2: Select the "Constitution" tab and look for "Advanced Settings" at the bottom.

Step 3: You may turn setup mode off and on here.

For introductory information: What is Setup Mode?

For further information on how setup mode works: How do I use Setup Mode?