Go Outliner adds activity bar icon for code outline (Go projects only) to VS Code. It's also possible to extend main Explorer tab with sub-section by switching (goOutliner.extendExplorerTab) setting option to true.
Go-Outliner package needs to be installed for this extension to work
go install github.com/rclt2m/go-outliner@latest
By default extension keybinding is unassigned. If you want to assign your own keybinding for Go Outliner, just open your Keyboard Shortcuts (Ctrl+KCtrl+S), search for workbench.view.extension.go-outliner and assign prefered shortcut.
This extension contributes the following settings:
goOutliner.extendExplorerTab: boolean (default: false) - Extend default Explorer tab with additional section containing Go symbols
goOutliner.enableDebugChannel: boolean (default: false) - Display debug information into output channel