Button for expanding a cell?

Question

How can I create a button which sits next to the cell, like so: https://i.stack.imgur.com/32SuA.jpg

When you click the button it expands the cell, like this (note the cells on the right): https://i.stack.imgur.com/NGyJx.jpg

I can't find any code inside the Mathematica notebook for creating the button.

Duplicate of: Triangle that collapse cells

kglr · Accepted Answer · 2015-03-07T20:45:35.877

2

You need to set the option ShowGroupOpener to True:

SetOptions[EvaluationNotebook[], ShowGroupOpener -> True]

You can also use $FrontEnd (resp., $FrontEndSession) instead of EvaluationNotebook[] to get the effect for the current and future front-end sessions (resp., the current session).

Alternatively, you can use the OptionInspector from the Format menu:

enter image description here

to set this option at theselected cell, selected notebook or global level.

edited Mar 07 '15 at 20:45

answered Mar 07 '15 at 19:30

kglr

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Thanks! Can I delete the cell after evaluating it? – Lightvvind Mar 07 '15 at 19:33
@Lightvvind, you mean the cell with command SetOptions[...]? – kglr Mar 07 '15 at 19:36
Yes, or do I need to keep it in the notebook? – Lightvvind Mar 07 '15 at 19:39
@Lightvvind, you can make that line a self-destructing one (see, for example, this q/a). However, using the option inspector is probably easier/cleaner. – kglr Mar 07 '15 at 19:45

Button for expanding a cell?

1 Answers1