Youtube and licensing


I’m new to making Youtube videos, and would like to buy a title pack for my channel. Even though this might be self-explanatory to most of you, I’m still wondering, after reading the FAQ and here on the forum how I can use these packages. When I buy a title pack can I only use it in one video? I don’t need to make an intro, but I would like to be able to use text in my videos from time to time. Do I need the extended license for that?

Best regards