How to extract curves from a surface

I have an angled surface and I’m trying to extract horizontal lines down the surface like I did with the vertical lines, though with the vertical ones I used divide to get a consistent distance between them and used extractisocurve but I cant use extractisocurve for the horizontal lines since theyre picking the angle not an orthagonal horizontal line. I’m fairly certain I’ve used the command before I’m just forgetting it atm

Hello- the Contour command should help here.

-Pascal

yep that was it, thanks