Create Model
You can select an existing model, and then go to the Create Model section and
click Copy Selected Model. This will create a new model that is an exact copy
of the original model you selected. You can also create a new customized model
from scratch. To do this, click Make Custom Model.
The MR&R pre-set models containing data, and the blank M&R models can not be
changed, therefore if you want to use one of the M&R models as the basis for
your model, you will first need to copy it. When you copy a model, it will still
be named the same name as the original. You probably will want to re-name the
copied model so it has a distinct name.
To change the name of your model, type the new desired name of your model in
the Model Name text box, and then click the Change Name button.