You can add contracts to opportunities or quotes from the Contracts screen by following the steps below. You can navigate to the Contracts screen by clicking Opportunities > select opportunity > Add/Modify Plans > Contracts for opportunities or by clicking Opportunities > select opportunity > Quotes > select quote > Add/Modify Plans > Contracts for quotes.
Contracts can apply to a single plan, multiple plans, or the entire account. You can create multiple quotes, each with a different contract(s). Through this feature, you can create a one-year quote and two-year quote, with pricing specific to each.