I use F360 a lot but don’t have a work flow like the one you describe, but as Shane mention you can from the project meny “Insert design into current model”.
- Draw your part
- Right-click the wasteboard model from the meny and choose “Insert…” and it will be inserted to your part drawing.
- Align them as you wish and go to CAM
How do you intend to keep your machine in sync with the waste board over time?