I think you can do this on the 146/RJ too and I am sure you can in the L1011 - I seem to remember a story about a Cathay Capt. who got stuck in traffic when his wife, (who was accompanying him on a trip and had left for the airport early) was aboard the aircraft that he was supposed to be flying, and was taxying out with the standby Capt. When he got to the airport he got them to stop, managed to persuade someone to drive out to the A/C and scrambled up, bursting purple-faced into the flight-deck. I believe he was known as 'Pop-up Pete' forever after!