F50BNE,
As is obvious from the replies, the rules (or the interpretation of) vary from NAA to NAA, and can vary between operators under the same NAA.
Read your company manuals, and your local NAA regulations, if the answer is not there, or not clear, get a determination from your applicable NAA --- IN WRITING --- don't accept a "verbal" "ruling, you may need evidence.
Fundamentally, the ICAO Annex I rule is you log everything blox to blox as P2/Co-Pilot/local equivalent.
Do not, under any circumstances, take any of these posts as authoritative, as incorrect log book entries can attract quite severe penalties -- particularly in Australia.
Tootle pip!!
PS: NAA --- National Aviation Authority.