Here you can learn how to get to Admin page of a community whose administrator you are.
1.) Go to your community and select your community (accessed from your own HeiaHeia page by clicking the name of your community on the right hand side).
2.) Click on "Admin panel" and "Admin actions" dropdown list
3.) Log in with your default HeiaHeia account
4.) The administrator panel of your community is now open and you can change the community settings using the panel on the left.