OneShot Shift (&sticky_key_modtap LSFT LSFT)
This is a common ergonomic feature used in the ZMK keyboard community that helps you use Shift without holding it down.
It combines two ways of using Shift into one key.
Tap the key: activates one-shot Shift and turns on Shift for just the next key you press
Hold the key: works like a normal Shift key (you hold it while typing)
How-to:
Copy the DTS ZMK code below into the Custom Behavior Field in the MoErgo Layout Editor, then create a Custom Behavior key binding as shown below.