To set the number of levels to expand when you click + for a node, select
a value from the Expand drop-down list. Select All if you want to expand
the entire structure for a node; select Specify to enter a specific value
not shown in the list.
If you select All for a deeply-nested or large structure, it may take
a while to expand and display a node's structure. The page shows a progress
box indicating the number of rows retrieved, and you can Cancel the operation
if needed.
If you select Specify, a popup box opens. Enter a positive number
and click Done.
If you change the expand level after expanding a node, that node does
not use the selected expand level until you collapse and expand the node
again.