>>Expand is an event that occurs when a node is expanded. It is not a method to Expand a specified node.
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>True, I didn't see it that way.
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>>Try:
>>THISFORM.MenuTree.Nodes(nNodeKey).expanded = .T.
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>I found the EXPANDED property in the help file. The example show a numeric value for the node. Nodes(1).expanded = .T. When I said KEY I meant the KEY I gave it when I added it. i.e. ABA01
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>How could I now find this numeric value based on the KEY I gave it?

Nodes() is a collection that will take a numeric value or the character Key expression and return the corresponding node. You can use your Key value.