The BigBlueButtonBN plugin has the ability to let users upload slides.

When editing the settings for a room in Greenlight, add the ability for the user to upload a default presentation for the room.
See discussion https://groups.google.com/d/msg/bigbluebutton-dev/0pv3xN0NzQs/iaHloaSbBgAJ
and add the ability for the user to preset a specific message show to all viewer after default welcome message in the room.
Both great feature requests I would love to see in Greenlight.
I usually create the new room, join it to upload the presentation(s) I want to use and then log out again. Once I re-join the presentation is still there (make sure to log out, no to end the meeting).
also a pre upload url would help a lot if that is easier to implement.
I was also looking for this feature.
The bbb api can do this. I鈥檇 love to see this. Joining the session and uploading slides every time is pretty tedious for reoccurring sessions with the same set of slides. See https://github.com/bigbluebutton/bigbluebutton/issues/8848
and http://docs.bigbluebutton.org/dev/api.html#pre-upload-slides
In addition it would be useful to define final slides in a config-file.
Any update?
It is work in progress and will be hopefully release in the next big 2.7 update. #1895
Fixed in 2.7
Most helpful comment
Fixed in 2.7