AVI Scart on ES30V

The recording inputs on this Panasonic can be selected as AV1, AV2 or AV3 with AV2 being the normal default for RGB recording input and AV1 connected to the TV. I want to use a selector switch (Vivanco SBX-99SE or Trilogy 1 - any comments on these?) but these switches only provide a combined in-out scart. Can the AV1 scart on the Panny accept an RGB input (with auto aspect control) as well as provide the output?

Regards