ZBrushCentral

ZSphere Retopology Merging Points

Hi

When using ZSpheres to retopologise, Is it possible, or is there an option/button combo that merges two points together, particularly on the symmetry plane? I’ve tried moving one point over to the other, but they don’t seem to merge/weld together. After which, it’s next to impossible to move one out the way of the other. :-\

Thanks

Anyone?