Custom Ardupilot Altitude Control via RC

I'm looking for a skilled professional to modify the Ardupilot's auto mode for me. The goal of this modification is to allow altitude adjustments via my RC transmitter based on my personalized preferences.

Key Requirements:
- Modify the Ardupilot's auto mode to allow height adjustments via RC
- Prioritize ease of use in the modifications

Ideal Skill Set:
- Proficient in Ardupilot software
- Experienced in RC flight systems
- Excellent understanding of flight control systems
- Able to customize and simplify complex systems for user-friendly operation