The search criteria zone with buttons and search controls appears on top of the navigator pane. You can expand it or collapse it independently of other navigator parts. By default, it is expanded. Click the collapse button to collapse it. It expands downwards and it restricts the results zone height.
The upper part of the search criteria zone contains:
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1.The collapse button or the
expander button.
2.The refresh button (to update the results zone after changing the search criteria if the auto apply is not turned on).
3.The Saved search command bar. Note that also when the search criteria zone is collapsed, you can still select and apply saved searches.
4.The "search mode selector" drop-down button, to select and display the alternative search panes.
The lower part of the search criteria zone - if expanded - contains the search controls. The search controls are by default empty, unless you loaded a workspace saved with Include Searches, or unless there are scripted automated actions active related to search controls.
Note
Search fields are defined under Tark4ShellMainTab base query in Shell4_Config.xml.