Grid size

Is there a way to set the grid size?
I'm doing a pacman game and doing levels is a pain in the butt.
Grid snapping works to a degree but I really need to get it to a certain size.
And to be able to see it. Any ideas ?

 

create your grid outside of buildbox, and then pull it in as an object

 

That's a good idea rather than me guessing all the time.
Thanks chief !!!
That could be a good idea just to do the level layout and just lay the walls on top !

 

I think the grid size is 50x50 px if that helps.

 

Thanks alot always been guessing..