Native Instruments MASCHINE MK3 Groove Production Studio (Black) - Manual (Page 209)

As with the other pages of the Attribute Editor, the fields in the PROPERTIES page can be modified
only if you have selected user files in the Result list. The attributes of factory files cannot be edited.
4.6 Loading and Importing Files from Your File System
The Browser’s FILES pane allows you to browse your file system and import the desired folders
to your MASCHINE Library.
► To display the FILES pane, click the FILES tab in the top left corner of the Browser.
4.6.1 Overview of the FILES Pane
The FILES pane contains following elements:
Browser
Loading and Importing Files from Your File System
MASCHINE - Manual - 209