i installed the ggb filter, it shows up on the "active filter" list and the eye is open.
now where do i find it? how do i insert a ggb file?
i've tried activities and resources to no avail.
Put a ggb file into the file system. That means upload a file to the file system in the admin menu (normally to the left in the course).
Then link to this file and let the filter do its work.