I followed the tutorial and was able to load the spokenTutorialExamples package that I downloaded from the site. However, when i try to define my own packages by first saving the different classes and then using text editor to insert the 'within' keyword, when I select package.mo in OMEdit, the package loads but does not show the contents of all contained classes. However, the classes are visible when I expand the package and when I click on a particular class, it opens along with the 'within' statement as the first line.