Add Organisation owners
You are the ‘owner of your organization if you created it. You can add other owners (these will usually be other teachers who you wish to give admin rights to).
To add other ‘owners’ and give them admin rights:
Click your name/gravatar, bottom of the left hand pane
Click on the name of your educational organization - under My Organizations, which is about halfway down the screen.
Click the Members tab
You should see yourself listed as an owner. To add another teacher, choose the Add User drop down and as you type their Codio Username, the listing will filter down so you can then select them.