Change opener controls to cell groups to make them easier to open and close.
Globally using the Preferences dialog...
By default, ShowGroupOpener is set to “Inline”:
Choose [Mathematica] ▶ Preferences... (
) to open the Preferences dialog, then change ShowGroupOpener to “InsideFrame”:
Now, ShowGroupOpener is set to “InsideFrame”:
- For Windows and Linux users, the Preferences dialog is located in Edit ▶ Preferences...
Programmatically for All Cells in a Notebook...
Use SetOptions to change group openers for all group header cells in a particular notebook:
- See Find a Notebook’s NotebookObject Identifier for information on finding notebook identifiers.
Notes
A cell’s group opener will not show if the group has no contents.