Hi @nikitinanton ,
> 1) When creating and editing a course, there is no model panel in the sidebar.
Do you mean your course edit screen looks like this: https://cloudup.com/chJKSzkwh9c
If so, you should be able to click on the gear icon in the top right hand corner for the sidebar to appear: https://cloudup.com/cdMMiW78VuP
> Is it normal that when you change a teacher on a course, the module name automatically changes, including the module name and the teacher’s name in brackets?
Yes – see this code which was recently (January) merged: https://github.com/Automattic/sensei/pull/3869. What version of Sensei are you using?
Best,