once you get it just press play
then the app should open

after it opens youll see some random app with pictures. it will look like this
you can make your own crosshair, use one already made, or design one that you or someone else made

you can also make your cursor your crosshair

you can change the keybinds so that you can turn on/off the crosshair at any time

you can look at settings and change that

hope helps!!