Just grab it with your right controller by hovering it over the dash menu bar, squeeze the trigger and drag it down. Next time you startup it should remember where you positioned it but you may still need to finetune its position.
I'm assuming you are using an Oculus Rift btw.
i9 9900k, rtx3090, 32 Gb ram, 1tb ssd, 4tb hdd. xi hero wifi mb, 750w psu, Q2 w/Air Link, Vive Pro