Kramer Electronics VM-24HC - Manual (Page 13)

10 VM-24HC - Using the VM-24HC 2 Input 1:4 HDMI Distributor
2. Press the EDID READ button.
When the LED stops flashing the EDID from Output 3 is stored at the input.
Pressing the EDID SELECT button briefly once causes the relevant LEDs to
indicate which EDID is stored at the input as follows:

OUTPUT 1 LED flashes —the EDID from OUTPUT 1 was the last acquired

OUTPUT 2 LED flashes —the EDID from OUTPUT 2 was the last acquired,
and so on

All OUTPUT LEDs light —the default EDID was the last acquired

All OUTPUT LEDs flash sequentially —the Auto-Mix EDID was the last
acquired