rem: KMFilterActionTransport::KMFilterActionTransport(): KMFilterAction("set transport")
add: KMFilterActionTransport::KMFilterActionTransport() : KMFilterActionWithString( "set transport", i18n("set transport to") )
context: KMFilterActionTransport::KMFilterActionTransport(): KMFilterAction("set transport"){  mTransport = kernel->msgSender()->transportString();}