Use the Search preferences to set your search preferences for the Editor.
You can also access the Search preferences in one of the following ways:
To open the preferences, go to Edit > Preferences > Search (macOS: Unity > Settings > Search).

Search Preferences
| Setting | Function |
|---|---|
| Track the current selection in the search | Enable this setting to execute the SearchProvider.trackSelection callback each time the Search selection changes.The callback pings Assets in the Project window or Hierarchy window, which can slow Search navigation in large Projects. |
| Generate an asset preview thumbnail for found items | Enable this setting to display thumbnails for items that are currently visible in the results pane of the Search window. When you disable this setting, Search displays a generic icon. This is useful in large Projects, where generating icons can slow Search navigation. |
| Select the typing debounce threshold (ms) | The debouncing threshold is the time the system waits for the user to finish typing before executing the search. |
| Reset Priorities | Resets all providers to their default on/off state and priority. |
| Search Engines | Set the search fields in the Object Selector, ProjectIn Unity, you use a project to design and develop a game. A project stores all of the files that are related to a game, such as the asset and Scene files. More info See in Glossary, and SceneA Scene contains the environments and menus of your game. Think of each unique Scene file as a unique level. In each Scene, you place your environments, obstacles, and decorations, essentially designing and building your game in pieces. More info See in Glossary to one of the available search engines. Classic - The original search functionality. Advanced - The latest version of Search for Unity (formerly QuickSearch). |
| Setting | Function |
|---|---|
| A [Provider Toggles] | Enable and disable providers. When you disable a provider, Search ignores it when executing searches. |
| B [Provider Order] | Use these settings to modify the order in which search items are shown on the screen. All items of a given provider priority appear before any lower priority items. |
| C [Default Actions] | Use these settings to choose the default actions to execute when you select (for example, double-click) an item in the search results. |
Set the Custom index pages by selecting them or deselecting them from the Custom Indexers dropdown list.