Define a Supply Plan to plan only a subset of items?

Summary:

Define a Supply Plan to plan only a subset of items?

Content (required):

We have a scenario below.

Supply Plan 1 (Type MRP) to plan Items A, B, C, D and E

Supply Plan 2(Type MRP) to plan items V, W, X, Y and Z

How can we define a supply plan to plan only a set of distinct items or a category of items?

Version (include the version you are using, if applicable):

21D

Code Snippet (add any code snippets that support your topic, if applicable):

NA