CYP CPLUS-V4H2HPIP Operation Manual page 9

Note: Pressing "MENU" and "+" together will reset the output resolution
to XGA (1024×768@60Hz). Pressing "MENU" and "-" together will reset
the output resolution to 1080p@60Hz.
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IN 2/- (MINUS) Button: When not in source selection mode, press
to move down or adjust selections within OSD menus. When source
selection is active, pressing this button will either select input 2 (Matrix
mode) or sequentially switch through all 4 inputs for window 2 (PiP/PoP/
Quad/Preset modes).
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IN 3/+ (PLUS) Button: When not in source selection mode, press to
move up or adjust selections within OSD menus. When source selection
is active, pressing this button will either select input 3 (Matrix mode) or
sequentially switch through all 4 inputs for window 3 (PiP/PoP/Quad/
Preset modes).
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IN 4/ENTER Button: When not in source selection mode, press to
confirm a selection within the OSD or to go deeper into a menu item.
When source selection is active, pressing this button will either select
input 4 (Matrix mode) or sequentially switch through all 4 inputs for
window 4 (PiP/PoP/Quad/Preset modes).
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