Options related to code folding
This sub menu containsExpand/Collapse Fold, Expand Fold, Collapse Fold, Flip All Folds, Expand All Folds, Collapse All Folds, Flip Selected Folds, Expand Selected Folds, Collapse Selected Folds
Menu pathEdit > Code Folding
Accelerator keyO (from the main menu: Alt+E > O)
Options on parent menu (Edit+)Undo, Redo, Cut, Copy, Paste, Cut Extra+, Copy Extra+, Paste Plus+, Delete+, Select+, Block Select+, Find, Find Next, Incremental Search, Replace+, Go To+, Navigate+, Bookmarks and Marks+, Code Folding+, Extra+, Copy to Editor, Preferences