Authentication
Many ISIS features require authentication to use. For example, anyone may view station metadata, but only an authorized user may add new metadata. A user who has privileges to add metadata or modify an event may not have authorization to add a new station to the database.
We try to hide features from users if they are not authorized to use them, so a user who has privileges to add a new station will see that option on the station list page, but will not see it if they have not yet logged in.
If you have an ISIS account (a login name and password), your network administrator assigned privileges to you when creating that account. Contact the administrator if you think your privilege level is incorrect.