BenQ Joybee 200 - Manual (Page 56)

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5. Select the files to be added to the Joybee 200. To
select more than one file, press and hold the Ctrl key
on the keyboard while selecting the files. To select all
files, click the first file, press and hold the Shift key
on the keyboard, and then click the last file. If you
want to delete files, select files and press the Delete
key on the keyboard.