Flip part upside down

how do i flip a part upside down in order for it to be mounted under a board ? i have a arduino pro micro id like to flip upside down so it hangs underneath my pcb like a bat in a cave

Use inspector to change the side of the board in pcb like this

the Nano is now on the bottom of the pcb (note that the pins have inverted in x!)

Peter

awesome thanks!!! don’t know how i missed that lol