Use the Add Files Or Packages To Project dialog box to add files and packages to your project. To display this dialog box, choose Project|Add Files/Packages or choose the Add File/Packages button on the project pane toolbar.
The Add Files Or Packages To Project has several pages:
Displays the File Selection dialog box where you browse to a file or files to add to your project.
Displays the Package Browser dialog box where you browse to a package or packages to add to your project.
Displays the ClassInsight dialog box where you browse to a class or classes to add to your project.