A therapist demonstrates some attendant control options. WARNING: Some wheelchair skills can be dangerous if tried without a spotter to ensure safety. This is one of the skills described in the Wheelchair Skills Program Manual and shown in the Wheelchair Skills Program YouTube Channel. The Wheelchair Skills Program is a set of free online low-tech, high-impact, evidence-based resources for the assessment and training of the wheelchair skills of users (with or without the assistance of their caregivers) of manual wheelchairs, powered wheelchairs and motorized mobility scooters.