Any operations you apply on the table when building your query will appear listed above the data table (see Build a query in the search window to learn more about how to transform and work with query data). This way, you can easily consult the operations affecting the data, modify them, or undo operations. You can go back to any of the operations applied and start a new path of action from there.
Each tab in the bar/node in the tree appears in a color that denotes the type of action taken. The color code is described here:
Select the Node tree tool to display a visual record of all the modifications applied to the original data table. The actions and their sequences are displayed in a tree, known as the search tree. Select any point in the tree to display the query results at that point in the sequence of modifications. If you select an operation in a branch different from the current one, that path will be shown in the applied operations bar.
