Power Tap Joule GPS Question

Does anyone know how to turn device on before swim and have still be on when I get out onto bike, the only options I see are sleep mode maximum 10mins, after which time it turns off?

I just turn it on first thing when get to bike, no issues for many many races
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Here’s my former morning transition routine when I used a Joule GPS: wake up power meter (C1), turn on Joule, hit to find satellite, verify that you see a power number from the PM, let it fall sleep, when into T1 either tap the wake button before you put in your helmet or wait the few seconds until you’re mounted on the bike to tap it. Data from the bike split (and the run with bike into transition) will be saved.

For the wheels ( I do not have the pedals or chainring)
Just turn the head unit on “AFTER” spinning the wheels to wake up the powertap hubs.