The UPDATE command:
- The UPDATE command provides an interactive way to add or modify entries in the command dictionary.
- The UPDATE command handles the details in formatting the entries and inserting them in the correct order.
- In the example below you will notice that arguments were entered for each line. For instance, "3" was entered for Number of arguments [0]. You have the option to not enter an argument and have it set to the default value. For instance, if no argument was entered for Number of arguments [0] then the default value would have been set to 0
- Example:
```
nM> update mycommand
Option tree (USER, SITE, UCL, etc): [] -> train
MYCOMMAND Abbreviation: [MYCOMMAND] -> myc
Support [M] -> M
Number of arguments [0] -> 3
Default 1 [] -> FOO=3
Default 2 [] -> BAR=
Default 3 [] -> BAZ=
nM>
```
  Added the following entry to the command dictionary for the TRAIN option tree:
```
MYC*OMMAND    M,3    ,FOO=3,BAR=,BAZ=,
```
- If you choose not to use the UPDATE command and manually edit the command dictionary you will need to use the PATH command to reload the appropriate command dictionary.
  - This is done automatically when you use UPDATE.
  - Hint: Update is easier.

Don't Make This Mistake:
Many people make mistakes when they edit the command dictionary by hand (there are lots of special rules that must be followed when updating the dictionary by hand). This can be easily avoided by using the `UPDATE` command.

Don't Make This Mistake:
When using the `UPDATE` command, make sure to include the `=` after specifying each parameter name. Example: `STR1=`, instead of `STR1`. Failure to include the `=` sign will result in the parameter not being recognized by NeXtMidas.