Casio YP-100 - Manual (Page 60)

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15 On the Wireless Connection window, select “Options” on the “Tools” menu.
z This will display a dialog box for configuring the option setting.
16 In the “User Name” box, enter the user name (the name you want to appear in
the projection area when projecting the screen contents of this computer) for the
computer whose settings you are configuring.
z You can input up to 10 characters for the user name.
17 Click the [OK] button.