Code Folding: How to Collaps like "Fold Initially"

Dear All,

when having large scripts it is a good option to fold some code like functions and sections but not all, which can be set in the Editors Properties called "Fold Initially".

To recover this state (for all m-files) so far it was required to

1. close Matlab,

2. delete the file "%AppData%\MathWorks\MATLAB\R20XX\MATLAB_Editor_State.xml"

3. restart Matlab

With R2021b this Workaround causes some unexpected behaviour. The code is folded correctly, but depicted as unfolded:

Thus it cannot be unfolded (easily). When Collapsed it should be a "+".

Question: How to recover the Code Folding like it is set in Editors Property "Fold Initially" for a specific m-file? (But not "Collaps All")

Is there any Workaround better than deleting "MATLAB_Editor_State.xml"?

Regards Andre

[Andre Zeug]

digged a bit further but do not know howto execute "Collapse All" programatically

Otherwise this code could do what I want

function CollapseCurrentScriptLikeFoldInitially()
%% temporary set CodeFolding Preferences like "Fold Initially" Selection
s = settings;
% get Code Folding Preferences
CF = s.matlab.editor.codefolding;
% rearrange Preferences
fn = fieldnames(CF);
fn = sort(fn);
indInit = contains(fn,'Initially');
fnInit = fn(indInit);    % "Fold Initially" 
fn     = fn(~indInit) ;  % "Enabled"
TF     = {'o','x'};      % TrueFalse for display
for n = 1:length(fn)
    fni = fn{n};
    myInd = contains(fnInit,fni); % finds the corresponding "Fold Initially" 
    if any(myInd)
        fprintf('%30s: %s  %s\n', fni, TF{CF.(fni).ActiveValue+1}, TF{CF.(fnInit{myInd}).ActiveValue+1});
        CF.(fni).TemporaryValue = CF.(fnInit{myInd}).ActiveValue;
    else
        fprintf('%30s: %s\n', fni, TF{CF.(fni).ActiveValue+1});
    end
end
%% call KeyStroke "Collapse All"
warning(sprintf('This section does not work!\nNeeded to be replaced by a "CollapseAll" command. :-('))
import java.awt.Robot;
import java.awt.event.*;
RoboKey = Robot;
RoboKey.keyPress(KeyEvent.VK_CONTROL);
RoboKey.keyPress(KeyEvent.VK_COMMA);
RoboKey.keyRelease(KeyEvent.VK_CONTROL);
RoboKey.keyRelease(KeyEvent.VK_COMMA);
% https://stackoverflow.com/questions/25994261/how-to-execute-collapse-all-folds-in-the-matlab-editor-programatically
%% reset code CodeFolding Preferences 
for n = 1:length(fn)
    fni = fn{n};
    if hasTemporaryValue(CF.(fni))
        clearTemporaryValue(CF.(fni))
    end
end
end