In the emulator, it would add testing speed to be able to press the ‘tab’ key on the computer keyboard to advance to the next input like HTML.
Actually, you can [kind of] already achieve this by implementing correct UX markup that you’d need for the final iOS/Android release applications anyway. There is no tab key on mobile devices, but there is enter.
TextInput has an attached trigger TextInputActionTriggered which is pulsed when you click the enter key on the on-screen keyboard (or physical keyboard in case of local preview). Combine that with GiveFocus and you’re done.