Is there any simple way of pausing or ending a workout on the watch? I seem to remember that with a pool swim, pressing hte side button and digital crown simultaneously worked as a toggle on the old series 2, but I only ever saw that in a pool swim context. it didn't seem to work on my outdoor walk with the Series 3 I took the other day. At the moment the only way I appear to be able to pause or end a workout is via the touchscreen, and that takes a while which causes the timings to be slightly inaccurate. Plus I got held up for a very long time at a road crossing earlier, and I wished I knew of a simple way to pause progress. any thoughts, aside from 'don't do an outdoor workout that involves road crossings', would be very welcome.