Use a list to help a categorical column in ML.NET

Question

Dear experts,
I am using ML.NET and performing Text Classification.
For my purpose I use a simple example. I have 2 columns :

Feature -> col0 = some text
Label -> col1 = code number

The code number could be a part of a predefined set of values or not.
What I would like to do is to be able to pass my predefined list of values of col1 to help its prediction.

How can I give for each data entry this information during training?
And do I have to select Categorical in the Advanced data options for col1?

Best regards.