Yes, I can. Note however, that this is not a USB dock- it's Thunderbolt. In my particular case (literally just tested this) I needed to enable Thunderbolt boot

Yes, I can. Note however, that this is not a USB dock- it's Thunderbolt. In my particular case (literally just tested this) I needed to enable Thunderbolt boot support and change the security level (I have my thunderbolt settings pretty locked down). Booting off both a USB drive and a TB drive worked.