XYplorer Beta Club

Is there a way to unpack a folder? (extract everything inside a folder to the parent folder and delete the original folder afterward)

Standard Windows method: Select all the files in the folder (Control-A) and drag them to the parent.

If all child folders should be unpacked: Flatten the parent: Configuration | General | Menus, Mouse, Usability | Context Menus | File List... --> tick Flatten Folder. Then right-click the folder in the file list and select Flatten Folder in the popup menu.