What is the purpose of Snap/Thin?
To attach nodes from different objects that are close to each other to reduce the number of nodes of an object while retaining its shape.
When is Snap/Thin active?
When objects are selected and the table that the objects are in is editable.
How do I access Snap/Thin?
On the SPATIAL tab, in the Edit group, click Fix/Clean, and click Snap/Thin to open the Set Values for Node Snap/ Thinning dialog box.