The administration module for FirstAgenda is found by loggin in to https://web.firstagenda.com/ (the same url as the meeting particiapnts use). If you have the role of agenda collector or administrator in FirstAgenda, you will - instead of the reading section of FirstAgenda - be presented with the administration module.
Note that the administration module cannot be accessed via the FirstAgenda app on the iPad.
Only administrators and those responsible for the agendas have access to the administration module. Which areas you have access to depends on the role you have been given. The diagram below shows which rights administrators and agenda collectors have.
NOTE: X with parentheses, apply only to agenda producers who have the right to manage users. Here's how to get the right collector's rights: How do I create users?