This is a Forge Port of Elytra Auto Flight
When flying with the elytra wings and this mod, you can press the assigned (default "R") key to enable "Auto Flight". The auto-flight will modify your pitch (the up-down direction you are looking) to cycle between going down and gaining speed, and going up and gaining alitude. If you start from a high enough point, you will gain about 10 blocks of altitude per "cycle", and can thus fly for as long as your elytra wings have durability.
Pressing R when not flying with the wings will open the settings screen.
When flying, the mod will display a real time graph of your flight profile :

How to Install Auto Elytra Flight (Mod)
Auto Elytra Flight by cheaterpaul is verified for Forge, Neoforge across Minecraft versions 1.18.2, 1.19.2, 1.19.4, 1.20, 1.20.1, 1.20.4, 1.20.6, 1.21 (latest release: 1.21.4-2.0.2, file size: 62 KB). Follow the steps below to install it safely from ModCraft.tv:
- Click the Download button above and select your Minecraft version (1.18.2, 1.19.2, 1.19.4, 1.20, 1.20.1, 1.20.4, 1.20.6, 1.21) and platform (Forge, Neoforge).
- Make sure you have the compatible loader or environment installed for Forge, Neoforge.
- Move the downloaded Auto Elytra Flight file into your Minecraft
.minecraft/modsfolder and launch the game.