The power points would require some explanation so the power points by themselves may not be that useful
However there are options.
I write the motion control articles for Hydraulics and Pneumatics Magazine
The is the latest article but there is a whole series of article that would make a good hydraulic design course.
https://www.hydraulicspneumatics.com/cylinders-actuators/checking-cylinder-cavitation-using-vccm
The previous article was on cylinder sizing.
A lot is based on Jack Johnson's work but I have moved the theory to how it should actually be used. We sell hydraulic servo controllers so theory is good but it must also work.
The hydraulic control theory part can be found on my Peter Ponders' PID YouTube channel. However, my YouTube channels covers control theory in general not just hydraulic control theory.
Delta does have the capability to stream lectures or seminars to to YouTube. YouTube says qualified me for that. However, I am not happy with YouTube's politics and censoring. I may just keep videos on our website. We have green screen and all sort of video capabilities.
It is just that my power points were made using data from my Mathcad software. I wouldn't bother with powerpoints if I were streaming live video. I would use my Mathcad. YouTube also provide the ability for those that are watching the streaming to make comments. That would be good. Many years ago I did a GotoMeeting seminar, only two people showed up. I was disappointed so I haven't done one since.