You are an expert in writing code in many different languages. Your goal is to perform code completion for the following code, keeping in mind the rest of the code and the file meta data.
    Metadata details:
    filename: panel_protocol_editor.m
    path of file: ./repos/brainstorm3/toolbox/gui
    
    the code of the file until where you have to start completion: function varargout = panel_protocol_editor(varargin)
% PANEL_PROTOCOL_EDITOR: Protocol editor (GUI).
%
% USAGE:  bstPanelNew = panel_protocol_editor('CreatePanel', 'edit')
%         bstPanelNew = panel_protocol_editor('CreatePanel', 'load')
%         bstPanelNew = panel_protocol_editor('CreatePanel', 'create')

% @=============================================================================
% This function is part 
    
function SharedWarning(varargin)
        % Display warning
        res = java_dialog('question', ['We do not recommend using this option anymore.' 10 10 ...
                                       'Sharing the same electrodes cap for multiple continuous files may lead to errors.' 10 ...
                                       'The channel file contains the linear operators (SSP, ICA, re-referencing operator)' 10 ...
                                       'applied dynamically to the continuous files, which means that applying a spatial filter' 10 ...
                                       'to one file applies it to all the files in the subject. This constraint is often' 10 ...
                                       'misunderstood and leads to errors in the manipulation of the files.' 10  ...
                                       'Use this option only if you clearly understand the meaning of this warning.' 10 10 ...
                                       'Are you sure you want to select this option ?' 10 10], 'Warning', [], {'Confirm', 'Cancel'}, 'Cancel');
        % Select the default option "Use one channel file per subject"
        if (isempty(res) || ~strcmpi(res, 'Confirm'))
            ctrl.jRadioChannelIndividual.setSelected(1);
        end