We have identified a risk due to the way our AV system works. Presenters can blank a feed from their laptop or a teaching PC so it does not show on the projector, but this continues to be recorded by Echovideo. This has resulted in recordings of non-student facing materials being released automatically to students. Currently, the only options are to delete a channel or trim a section from all channels - which in these cases is the in-room camera, PC feed and audio. Ideally, what would be possible is to select the PC feed only 'video 1' for example, and cut out the problematic section, leaving a blank, and for this to not affect the camera and audio channels which are still required.