Advice Needed for VTX Power Wire Soldering on F411 AIO

getting ready to a rebuild/upgrade of my drone, looking for advice on where to solder vitx power wire.

This is an f411 AIO for a darwin tinyape, and I am going to be putting a WS 1s lite VTX on as well, but I am not sure what pad to use to power the vtx? the vtx is rated for up to 3s as as well as the board, and I would like to make this a 3s drone. It looks like the board has a BEC as well so can I use the 5v and ground pads next to the RX and TX2 pads on the board?