https://www.frsky-rc.com/frsky-advanced-engine-suite/
FrSky Advanced Engine Suite - FrSky - Lets you set the limits
advanced engine suitefrskyset
https://www.frsky-rc.com/product/advanced-engine-suite-ii/
Advanced Engine Suite II (AES II) - FrSky - Lets you set the limits
The X7S ACCESS features 24 channels with a faster baud rate and lower latency thanks to its high-speed module digital interface.
advanced engine suiteiiaesset