Harmony Remotes

[laptopleon]

I'm using a Harmony 555 to control a Panasonic TH-42PX60 flatscreen, and more. This TV has an option for a PC screen signal and a dedicated input channel for it, that you can select via the remote.

However, there is no discrete button on the original remote for selecting this PC channel (which makes it impossible to learn it to the Harmony), nor does the Harmony Remote software provide in such a preset choice.

Normally, I select the PC channel by pressing 'AV/TV' on the remote and then using the colored buttons to navigate to the PC channel (so basically AV/TV, blue, blue, yellow and later red, red to get back to AV1 for the PVR I'm also using)

I found a thread with a similar problem, but the solution they found is to select the right input from the drop menu:

http://forums.logitech.com/t5/Harmony-Remotes/HARMONY-one-does-not-switch-between-TV-input-sockets/t...

My drop menu does not list a PC channel so I can't select it..

I would appreciate any help.