I have a suggestion to ask.
I have a contact list and would like to identify them by category.
I wish I could put everyone in a category 1, category 2 and category 3 °.
I wish I could use this information to conduct research at a later time.
I would also:
example: architect (category1 °) - planning, design, teach (2nd category)
enterprise (category1 °) - construction, electrical, plumbing (Class 2nd)
I would like the selection of the first category I list the conditions of the second.
I hope that I explained
how do you recommend?