group models

Hi there,

i just want to make sure. i'm referring to 'group models' operator.  have a look at such process:

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<process version="5.1.006">
  <context>
    <input/>
    <output/>
    <macros/>
  </context>
  <operator activated="true" class="process" compatibility="5.1.006" expanded="true" name="Process">
    <process expanded="true" height="674" width="1389">
      <operator activated="true" class="read_arff" compatibility="5.1.006" expanded="true" height="60" name="Read ARFF" width="90" x="45" y="30">
        <list key="data_set_meta_data_information"/>
      </operator>
      <operator activated="true" class="multiply" compatibility="5.1.006" expanded="true" height="94" name="Multiply" width="90" x="112" y="210"/>
      <operator activated="true" class="filter_examples" compatibility="5.1.006" expanded="true" height="76" name="other kind of preprocessing" width="90" x="313" y="165"/>
      <operator activated="true" class="decision_tree" compatibility="5.1.006" expanded="true" height="76" name="Decision Tree" width="90" x="581" y="165"/>
      <operator activated="true" class="filter_examples" compatibility="5.1.006" expanded="true" height="76" name="some kind of preprocessing" width="90" x="313" y="345"/>
      <operator activated="true" class="decision_tree" compatibility="5.1.006" expanded="true" height="76" name="Decision Tree (2)" width="90" x="581" y="345"/>
      <operator activated="true" class="group_models" compatibility="5.1.006" expanded="true" height="94" name="Group Models" width="90" x="880" y="201"/>
      <connect from_op="Read ARFF" from_port="output" to_op="Multiply" to_port="input"/>
      <connect from_op="Multiply" from_port="output 1" to_op="other kind of preprocessing" to_port="example set input"/>
      <connect from_op="Multiply" from_port="output 2" to_op="some kind of preprocessing" to_port="example set input"/>
      <connect from_op="other kind of preprocessing" from_port="example set output" to_op="Decision Tree" to_port="training set"/>
      <connect from_op="Decision Tree" from_port="model" to_op="Group Models" to_port="models in 1"/>
      <connect from_op="some kind of preprocessing" from_port="example set output" to_op="Decision Tree (2)" to_port="training set"/>
      <connect from_op="Decision Tree (2)" from_port="model" to_op="Group Models" to_port="models in 2"/>
      <portSpacing port="source_input 1" spacing="0"/>
      <portSpacing port="sink_result 1" spacing="0"/>
    </process>
  </operator>
</process>

i want to export all models in the process into a single model. i'm assuming that group models operator should be used in that case. will it work fine in this case? i.e. both decision trees will be saved and all appropriate preprocessing will be done just like in this process?

could you elaborate somehow on this, please?