- Lab 2 (solution):
  - You should have followed the steps on the previous pages to create a new option tree called TRAIN. You could done it manually or have used the `OPTION/create` command, e.g.

        nM> option/create train /home/student/nmopts/nxm/train
        nM> path add train

  - To add and build the commands you should have done the following:

        <Save counter.java to the prim area.>
        <Save sayhello.mm to the mcr area.>
        nM>
        nM> update counter
        Option tree (USER, SITE, UCL, etc): [] -> train
        COUNTER Abbreviation: [COUNTER] ->
        Support [M] -> P
        Number of arguments [0] -> 2
        Default 1 [] -> START=1
        Default 2 [] -> END=10
        nM>
        nM>
        nM> update sayhello
        Option tree (USER, SITE, UCL, etc): [] -> train
        SAYHELLO Abbreviation: [SAYHELLO] ->
        Support [M] ->
        Number of arguments [0] -> 1
        Default 1 [] -> NAME="Anonymous"
        nM>
        nM>
        nM> make all train
        <Builds the option tree>