Hi,
To get such a hexagonal distribution pattern, you should deselect the Lock aspect ratio option and set the Distribution Map > Density values correspondingly - in the case of the Full map, using two Forest objects would be recommendable. By using the Grid 3 map, it's possible to archive it in one Forest object.
Let me mention, that though such a task can be approached by both of our plug-ins, each one with its advantages. Probably the RailClone plug-in will suit better this task - there's the Hexagonal Padding macro for these purposes.
I hope that helps.
Best regards,