In the early days of PCs when hard disks were added. Almost everyone put their files in a single directory not realizing the significance of a folder hierarchy.

This is exactly the problem I am confronted with if I am going to solve a large number of problems because of my special needs. There may ...

Thanks for the the feedback

OK...so what I infer from your comments and my understanding of the product. I can NOT add items to the Exercise area, or additional items to the "Choose lesson" dialog unless I have teacher's edition of the program. Is this correct?

If I understand the situation ...

I did not get the teacher version, and perhaps for this reason I find the customize facility a bit awkward.

I do not in principle need the teacher version for there is nobody but myself who will ever use my copy of the application.

However, only the teacher version gives you complete control over ...