Someone has used a spatula and spring feedback from the Hermes Ambassador's space bar to effectuate a power space functionality. https://www.reddit.com/media?url=https://v.redd.it/4js8jq2snhbh1/HLSPlaylist.m3u8
Of interest, the power space on most of the Smith-Corona machines works exactly like this internally—they've just hidden the rectangular rubber "spatula" inside the right rear of the machine.