This seems like a simple enough question but it hasn't been easy to find an answer!
I have a Pi3 (with recommended PSU), official screen, official camera and I've now added the respeaker 2-mics Pi Hat: https://www.seeedstudio.com/ReSpeaker-2-Mics-Pi-HAT-p-2874.html
Originally I powered the screen from the GPIO as per the instructions: micro USB into Pi and GPIO 5v +- into screen. I've now got the Respeaker Pi Hat which requires the use of all the GPIO pins and forces me to use a 2nd micro USB supply just for the screen!
The question is, would it possible to tap into the 2 solder pads on the underside of the Pi where the micro USB is situated and send power to the screen from here? Ideally I would like to avoid soldering straight onto the pi but rather that than the use of two power supplies. Unless there is another solution?