https://www.microfocus.com/documentation/silk-test/200/en/silktestclassic-help-en/STCLASSIC-D8F94124-ADDING-A-FOLDER-TO-THE-FILES-TAB-OF-THE-PROJECT-EXPL.html
Adding a Folder to the Files Tab of the Project Explorer
Use the Files tab of the Project Explorer to add a folder to a project.
adding a folderto thefiles tabprojectexplorer