Section folding not present

2026 3 12
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更新时间：2026 3 31
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Using R2024B, i got the option to use the live editor and some things changed without asking.
Most importantly, the + buttons to fold a section have dissappeared, while in preferences/editor/code folding the option sections is ON.
Another change is that the titles of the scripts are in an additional column.
FInally, beneath the folder section, there is a new window with the 'script' , i.e. a shortcut to jump to a section.
How can I get the section folding again?
Cheers, Paul

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Stephen23
Stephen23 2026-3-12，9:14
编辑：Stephen23 2026-3-12，9:14
AFAIK code folding is not supported in the Live Editor. You seem to be describing the Live Editor layout, but expecting features from the classic text Editor. The solution would be then to use the classic Editor.
Hamid Farshi
Hamid Farshi 2026-3-16，21:10
as mentioned in prior comment, code folding and section folding is not yet supported in the Live Editor however starting from R2025a, you can use a side panel called "Outline" which gives you ability to navigate quickly to your desired section in your live script.
Paul
Paul 2026-3-17，7:40
Thank you Stephen23 and Hamid for your answers.
Sorry, I was not specific enough:
Using R2024B, i got the option to use the live editor, which I did NOT select and still some things changed like the absence of the folding+ buttons.
Hamid Farshi
Hamid Farshi 2026-3-18，14:13
编辑：Hamid Farshi 2026-3-18，14:13
Paul, if I undrestand correctly, you mean that you opened a .m file and it got openned in the live editor instead of the traditional editor and hence some features were missing? if my assumption is correct, perhaps you are using a .m plain text based live script? (for more info take a look here: https://www.mathworks.com/help/matlab/matlab_prog/plain-text-file-format-for-live-scripts.html)
These files are live scripts and would open in live editor.
Paul
Paul 2026-3-30，12:06
OK, new attempt!
I opened a .m file and for the first time and without me asking anything, I got the option to open a live script.
I DID NOT choose that option and wanted to continue is my .m file as always.
But all of a sudden, there are two major visible changes:
  1. the name of the .m file is no longer above the script, but is an extra column in the editor section
  2. I do not have my +button which I was using to folding certain sections of the code.
All I want is the work in a regular .m file with the +buttons.
I hope this is clear! :-)
Groeten uit Amsterdam,
Paul
Paul
Paul 2026-3-31，7:23
You are right! I did go to support.

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2026-3-12，7:37

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