Training videos can be single camera shoots or multiple camera shoots - each is different.
Perhaps the training involves being able to see multiple angles, maybe wide angles and close-ups, maybe different views of a complex demonstration - this would involve multiple cameras.
Or maybe the training involves a simpler set-up, perhaps somebody talking, accompanied by PowerPoint slides or other video components - in which case a single camera would be sufficient.
The training may need to be shot set-up in a controlled carefully lit environment or it might be shot live "in the field".
Just let us know what you have in mind and we will happily share our experiences with you and provide a no obligation quote.