You can add a view to a part/feature that already exists in the library in any of the following ways.
Sometimes it is convenient to save an existing view under another name and modify it. For example it is easier to create a sectional side view from a side view, rather than drawing it from scratch.
Once you add the view, you follow the same process that you used to refine the previous views. It is likely that you have already completed setting up the Family Table. When dimensionally constraining the view, check the Family Table and ensure that you use the same names for dimensional constraints across views. Failing to do so may result in the following problems: