data.left = new FormAttachment(0, 10);
data.top = new FormAttachment(gr, 20, SWT.BOTTOM);
gr1.setLayoutData(data);
initialize();
viewer = new VarValViewerHandler(gr1, VarVal.fieldNames, 3, envVarList);
initializeCombos();
dialogChanged();
setControl(container);
} catch (Throwable e) {