I know - I have already actioned several powered flying / gliding opportunities via ACTO35.
What I am saying is that if the facility is approved (CAA / GSA), that should be sufficient.
EDIT - oh, hopefully I was instrumental in getting them to add gliding as well as to accept "composite" lists rather than one for Cadet A + Aircraft A + Pilot A; ah, if Aircraft A has a technical issue on the day of flight, then requirement to have paperwork for Cadet A + Aircraft B + Pilot A - ah, but if Pilot A is ill on the day, then need to have........ It would have been one form, per cadet per possible aircraft combinations, per possible instructor combinations. Three cadets with 3 aircraft & 3 pilots would have been 3 x 3 x 3 forms - 27!!! That hadn't really been thought through very well!