Panasonic TV - IP vs IR

I’ve just bought Roomie to use with my Panasonic TV and iPad3.
I believe that it’s possible to select the HDMI input specifically using IR (which obviously isn’t possible directly with the iPad3) but Roomie doesn’t offer to do this when using IP. Is it that Roomie doesn’t have the codes or is it that the functionality isn’t available using IR?

Many thanks