I have successfully replicated this Input selection method and can select any specific Panasonic VT50 (US) Input using two successive commands in Roomie. I am doing this over IP, and IR should work the same.
“Input Next” starts cycling if you do it twice, the key is to do it once and then use the numeric keypad Digit to select the desired Input. If you click Input on the Panasonic remote you will see numbers 1-7 in front of the Inputs.
Not sure why people where having problems unless they didn’t use the proper sequence. This is how I select HDMI 1:
Input Next (Panasonic TV Viera VT50 Viera IP) 200 ms
Digit 2 (Panasonic TV Viera VT50 Viera IP) 200 ms
Digit 2 selects HDMI 1 because Digit 1 selects ANT/Cable IN, Digit 3 selects HDMI 2 and so on until Digit 7 to select the PC Input. This also works using the Panasonic IR remote control, just click Input and 2 (on the keypad) to immediately select HDMI 1.
No need to cycle through all 7 inputs anymore. Essentially the “Input Next” label is misleading because the first time it only opens the menu, but the second is actually “Input Next”.