function createConfigMenu(DBHandler)
    % Create the main figure window
    fig = uifigure('Name', 'Configuration Query', 'Position', [100, 100, 400, 300]);

    % Retrieve tables and table names using the DBHandler class
    dbTables = DBHandler.getTables();
    tableNames = DBHandler.getTableNames();

    % Assume that the DBHandler class provides methods to get the unique
    % configuration options (e.g., PAM levels, bitrates, etc.)
    uniqueBitrates = unique([dbTables.bitrate]);
    uniquePAMLevels = unique([dbTables.pam_level]);
    uniqueWavelengths = unique([dbTables.wavelength]);
    uniqueDBModes = unique([dbTables.db_mode]);

    % Create dropdown menus for each configuration
    lblBitrate = uilabel(fig, 'Text', 'Bitrate:', 'Position', [50, 240, 100, 20]);
    dropdownBitrate = uidropdown(fig, 'Items', string(uniqueBitrates), 'Position', [150, 240, 200, 20]);

    lblPAM = uilabel(fig, 'Text', 'PAM Level:', 'Position', [50, 200, 100, 20]);
    dropdownPAM = uidropdown(fig, 'Items', string(uniquePAMLevels), 'Position', [150, 200, 200, 20]);

    lblWavelength = uilabel(fig, 'Text', 'Wavelength:', 'Position', [50, 160, 100, 20]);
    dropdownWavelength = uidropdown(fig, 'Items', string(uniqueWavelengths), 'Position', [150, 160, 200, 20]);

    lblDBMode = uilabel(fig, 'Text', 'DB Mode:', 'Position', [50, 120, 100, 20]);
    dropdownDBMode = uidropdown(fig, 'Items', string(uniqueDBModes), 'Position', [150, 120, 200, 20]);

    % Create a button to query the configuration
    btnQuery = uibutton(fig, 'Text', 'Query Configuration', 'Position', [150, 80, 200, 30], ...
        'ButtonPushedFcn', @(btn, event) queryConfiguration(DBHandler, ...
                                                            dropdownBitrate.Value, ...
                                                            dropdownPAM.Value, ...
                                                            dropdownWavelength.Value, ...
                                                            dropdownDBMode.Value));

    % Function to handle querying the configuration
    function queryConfiguration(DBHandler, bitrate, pamLevel, wavelength, dbMode)
        % Convert dropdown values to numeric if necessary
        bitrate = str2double(bitrate);
        pamLevel = str2double(pamLevel);
        wavelength = str2double(wavelength);
        dbMode = str2double(dbMode);

        % Query the DBHandler class with the specified configuration
        results = DBHandler.query(bitrate, pamLevel, wavelength, dbMode);

        % Display the results in the command window (or update the GUI)
        disp('Query Results:');
        disp(results);
    end
end