public void setColumns(int columns) {
this.columns = columns;
}
public void addToControlPanel(ControlPanel panel) {
checkGroupBox = new CheckGroupBox(getSplitValues(), getSeparator(), getEscapeSequence(), getColumns());
checkGroupBox.setEnabled(isEditable());
panel.getStylesheetHandler().addCheckGroupBox(checkGroupBox);
initComponent(checkGroupBox, panel);
}