A workout belongs to one client. There is no shared library of workouts that everyone draws from. You build it for a person, and if you want the same workout on somebody else you copy it across. That is worth knowing up front, because it changes how you name things.
Creating one
Open the client and add a new workout to their program. Give it a title and it appears on their program straight away. There is no draft state, so an empty workout is a visible empty workout.
With nothing built yet, the client's side says "No workouts yet". Build the first one before you tell them to look.
Naming it for the person reading it
Your client sees the title, not your programming logic. "Lower body A" is clear to you and meaningless to them on a Tuesday morning. "Heavy legs" or "Monday workout" does more work.
If you program in blocks, put the block in the folder name rather than in every workout title. Repeating "Block 2" across six workouts just makes the list harder to scan.
Order is the program
Workouts appear to your client in the order you put them in, and Reorder workouts lets you change the sequence by dragging. This is not decoration. For a client working down their program, the order is the instruction about what comes first.
The same applies inside a workout: exercises have their own order, reordered separately.
Editing and deleting
Edit a workout at any time and the client sees the change immediately. There is no publish step, so avoid rebuilding a workout mid-week while somebody is halfway through it.
Deleting asks you to confirm and cannot be undone. If a workout is finished rather than wrong, moving it to a folder is usually better than deleting it. You keep the history of what they actually did.
Reusing one
Copy a workout and paste it into another client's program rather than rebuilding it. The copy carries the exercises with it. Do not leave it too long between the two. The clipboard expires after 15 minutes.