I �m trying to create online exercises, but I can �t do it. I �ve read the tutorials and it seems quite easy but when I try to do it, some of the commands don �t work. For instance I can write text or insert images but it �s impossible to do multiple choice exercises or quizzes or even to insert a video. It appears a chart that says �error inserting object in current location �.�Could anybody help me? Maybe the solution is easy but I can �t find it. Thank you very much