In the MSIExplorer window:

1. Right-click on the User Context node and select New Context to create the “Root node” of your tree.
2. Select this new node and press F2 to rename it (or right-click on it and select Rename).
3. From your “root node” you can:
   1. either create new child context(s): right-click on the root node and select Parent/Child > New Context,
   2. or directly drag'n drop identification results from the Identifications window to the root node (drag one identification result at a time and wait for your node highlights with this cursor before dropping the identification node),
   3. but you can't have both (contexts and identifications) at the same level. This rule applies to every contexts.
4. Child contexts may contain in turns other contexts or identification results. Identifications are the “leafs” of the tree.

To move a given context node to the upper level, right-click on it and select Parent/Child > Detach.