File | Settings | Editor | General | Breadcrumbs for Windows and Linux

IntelliJ IDEA | Preferences | Editor | General | Breadcrumbs for macOS

⌘,⌘,⌘,⌥F7⌃⌥S

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Use this page to enable or disable breadcrumbs for all supported languages or for some of them. Optionally customize the placement for breadcrumbs in the editor and highlighting for them.

ItemDescription
Show breadcrumbs

When this check box is cleared, the Placement and Languages areas are disabled.

When this check box is selected, breadcrumbs are shown in the contexts selected in the Languages area:

../../Shared/breadcrumbs_java.png

Placement In this area, choose whether you want to have breadcrumbs at the top or at the bottom of the editor. The default option is Bottom.
Languages Select the check boxes next to the language contexts where you want to have breadcrumbs.
Manage colors Click this link to open Color Scheme and configure colors for highlighting breadcrumbs.