Use of Toggle breadcrumb in eclipse

Java editor adds breadcrumb navigation (good function, but it consumes some resources)
First, this is an experimental function.
You can click the toggle breadcrumb button to enable this function.
(Affiliated to the Java editor presentation group, how can I disable it? Right-click the top navigation bar and select the commands tab, as shown in :)

 

 

Its role is:
1. You can quickly locate a method of the current class without pressing CTRL + 0 (display all methods of the current class and locate them)

 

2. You can quickly locate other classes under the same package.

 

3. You can locate other packages under the same project.

 

4. You can find other folders.
5. You can locate other projects.

5. Quick Fix and quick assist)

How to disable:

1. Find the "toggle breadcrumb" button on the toolbar and click to restore it to the unselected status.

2. If you cannot find this button. Click "window-> customize Perspective" in the menu to open the dialog box. On the "command" tab, select the check box "Java editor presentation". Then, click OK to display this button on the toolbar.