Its not the same thing... having a in-project note block is sometimes time saving.Add any kind of file (Notepad++, Word, Excel, whatever) to the Files Tab; from there, just double-click and open it with your default software installed on your PC.
One thing are general project notes (and in that way you can have much more, being able to use many types of files, for example a file with project flowcharts), other are notes for each class/module. If it is text only and affects the entire module, why not write them directly at the top of the module? I don't think they would be lost when you used the module/class in another project.Its not the same thing... having a in-project note block is sometimes time saving.
I like to keep a note block as comments inside each module/class. This way if i share the class in another project, the class related comments are still there.
#If MyNotes write anything that you like here. . . . #End If