In create course front end section.
I renamed level as language and changed slug to language as per our need. By using select2 (jquery) we are selecting 3 options from level(language)"It is requirement".
The problem is when we save the course from front end at that time the multiple values of level(language) are not getting stored to backend. How we can update the level meta for multiple selected values. Is there any hook or option to overcome this problem.
Well yes you are correct , currently there is no provision to save multiple categories or levels from front end .
there is no action hook provided , we need to add this in the code itself which we will in upcoming updates of wplms.