Snap to center of gutter / add option for guides in center of gutters
Would be ideal to allow the user to add additional guides in the center of gutters, so that when you're designing something with no gutters, there is still a guide to snap to. Really badly described, but hopefully the attached will explain it better.
Either that or the guides could have an invisible snap point in the center of the gutters.
Am I the only person who sets grids up like this in PS?