pinning of nodes

[pwin]

When using the relfinder approach of the InteractiveGraph there is a force-directed layout of the nodes, and the nodes can be dragged out. However, once the mouse cursor is removed from a node, the force-directed physics is re-applied and the node returns to the place it was dragged from. This is not very useful when I want to spread out the nodes a little more than is done automatically.

Is there any setting for allowing the node to be 'pinned' to a position by dragging so that I can manually spread nodes out for inspection?

[HC-teemo]

We added a new button in the toolbar to switch the force-directed.We are developing some functions to pinning the specified nodes.