This is in reference to:
https://www.joomlart.com/forums/d/37947-redirect-individual-lessons-to-joomla-login-page/6

If a user has already logged in and clicks on an individual lesson. A page then comes up for them to make the purchase via iGuru.

What we were hoping is that, if a member clicks on a individual lesson it will either take them to the "Take This Course" for that particular course. Or, the "Get access to all the tutorials in the course now!" Or we can just have the link, just go back to the course page. And then on course page, we can simply write please click "Take This Course" or "Get access to all the tutorials in the course now!" in order to purchase course.

For example:
If a current user who has already registered and logged onto our website.
Browses our course page

Then, since they are logged in.
They may click on some of the lessons, since some lessons have a free preview option.

The preview a free lesson.
Then when they click to next lesson; which is not free.

They are redirected to a page similiar to this;

Which takes them to this page; "https://website.com/cart"

Not sure, if its easier to disable any link that doesn't have a free prevew and the student hasn't already enrolled in the course or if easier to simple rever to course page or what the easiest way would be.. But would love some assistance.. No rush, but would be 110% appreciated.