The warm up is built into every workout. It plays first, with a Skip Warmup option if you're already warm.

The stretching and cool down are kept separate on purpose. Some days you want five minutes of stretching, some days you don't, so you decide. You'll find stretch and mobility sessions in Classes under Stretch & Mobility, and you can add one to any day in the Workout Planner.

They're built without wasted time, and they're my recommendation, not the ceiling. If you want longer days, add a class on top of your program day or build your own program.