you can activate the data code only for the playback. It is recorded always (in background) and at playback you can let it show or not let it show.
But this activation needs to be done before the playback, for the whole scene..
But I want to let it show only for some seconds per scene and not for a whole scene.. This is possible with the remote control, but I do not know from which model on the handycams have the remote control..
IR remote control is available on the PJ260, PJ580 and PJ600, but the CX260 and others in that range only come with an A/V remote port, to which you connect a remote commander such as those found on some Sony tripods.