1. What is smart keymapping?
The smart F button means that the system intelligently recognizes different scenes (hook, loot, barrier, or reinforce, etc.), and puts the F button intelligently in the corresponding position. It solves your troubles when you have to set up multiple keys at different locations.
For more details: Smart Key – AI Buttons Detection
2. How to use smart keymapping for Area F2
You need to update MEmu to the latest version and then the smart Keymapping is set as default.
The smart keys for Area F2 are mapped to its position automatically, and you do not need to set up anything. However, you have the freedom to customize some of the keys at your own convenience.