there is a gathering guide. But simply put you create a nav mesh using hte meshmanager over the nodes you want to mine/harvest Then you drop a marker in marker tab of the mesh manager set hte level range you wnat to gather from this spot name it and drop they specific type of marker, mining/botanist then go to the gather manager select your marker from the drop down menu enter the items you want to gather set the time you want to gather for and click start.
http://mmominion.com/Thread-Tutorial-Gathering
http://mmominion.com/Thread-Tutorial-Gathering