Draft and Edit Course button on each course instructor courses menu

Hi, When you are release this, It is important take care  about instructor's permissions: https://wplms.io/support/forums/topic/better-instructors-pemission-important/ Hi, I see that When an Instructor edit a course previously created in front end, all the changes are automatically visible for everyone. How do I prevent this? For example An instructor create a Marketing Course. I have 10 students in this course. The instructor decide change the course and break videos or erase information. How Can I prevent this and all changes must be approved befores it is online? When a course is live it can´t be change without aprove all the changes. People could put information that can´t be aproved like porn or videos with copyright, etc.. Another thing, In front end If I make changes all is live, only if I click on send to approval it is on draft, how ever all the students that are in the course see the changes in live. It is dangerous. Thanks.