java - enter a second group layout in GUI -

i'm trying implement gui , i'm missing jtextfield. want below everything, , wide 2 comboboxes. add height. trying use inside grouplayout (in code below), gets messed if so. there way of creating new group layout underneath 1 , add textfield? thank

    grouplayout layout = new grouplayout(getcontentpane());     getcontentpane().setlayout(layout);     layout.setautocreategaps(true);     layout.setautocreatecontainergaps(true);      grouplayout.sequentialgroup horizontalgroup = layout.createsequentialgroup();     horizontalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)             .addcomponent(jbutton1)             .addgap(50, 50, 50)      ));      horizontalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)             .addcomponent(fromlabel)             .addcomponent(timelabel)     ));      horizontalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)             .addcomponent(mainlabel)             .addcomponent(querylabel)             .addcomponent(employeemsg)             .addcomponent(stoplistdeparture)             .addcomponent(departuretime, grouplayout.preferred_size, grouplayout.default_size,                   grouplayout.preferred_size)             .addcomponent(jtextfield)         ));         horizontalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.trailing)             .addcomponent(tolabel)       ));       horizontalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.trailing)             .addcomponent(stoplistarrival)             .addcomponent(querybutton)              .addgap(200, 200, 200)     ));         layout.sethorizontalgroup(horizontalgroup);     /////////////////////////////////////////////////////////////////////////////////////      // creating vertical view     grouplayout.sequentialgroup verticalgroup = layout.createsequentialgroup();     verticalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(javax.swing.grouplayout.alignment.leading)              .addcomponent(mainlabel)             .addgap(50, 50, 50)             ));     verticalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(grouplayout.alignment.leading)              .addcomponent(jbutton1)             .addcomponent(employeemsg)             .addgap(50, 50, 50)      ));     verticalgroup.addgroup(layout.createsequentialgroup().addgroup(layout.createparallelgroup(grouplayout.alignment.leading)             .addcomponent(querylabel)             .addgap(40,40,40)     ));     verticalgroup.addgroup(layout.createparallelgroup(grouplayout.alignment.trailing)                .addcomponent(jbutton1)             //.addcomponent(jseparator, javax.swing.grouplayout.preferred_size, 27, javax.swing.grouplayout.preferred_size)             .addcomponent(fromlabel)             .addcomponent(tolabel)              .addcomponent(stoplistdeparture)             .addcomponent(stoplistarrival)     );      verticalgroup.addgroup(layout.createparallelgroup(grouplayout.alignment.trailing)             .addcomponent(departuretime, grouplayout.preferred_size, grouplayout.default_size,                       grouplayout.preferred_size)             .addcomponent(timelabel)             .addcomponent(querybutton)      );     verticalgroup.addgroup(layout.createparallelgroup(grouplayout.alignment.trailing)             .addcomponent(jtextfield)     );     layout.setverticalgroup(verticalgroup);