Create a Custom Modifier Key Combination (Ctrl+Shift+Key)

Open the Keybindings Configuration

Access Options → Controls and find the keybinding you want to customize. This mod supports modifier keys like Ctrl, Shift, Alt, and combinations of them.

Bind a Modifier Combination

Click on the keybinding entry. When prompted, hold down your desired modifiers (for example, hold Ctrl and Shift) and then press your chosen key (like C). Release all keys. The binding should display as Ctrl+Shift+C or similar notation.

Test the Multi-Key Binding

Close settings and test in-game by pressing all keys simultaneously. The action should trigger only when you press the exact combination—pressing just C alone won't activate it.

Troubleshoot Conflicts

If your combination doesn't work, it may conflict with your operating system or another mod. Try a different key or modifier set. Avoid common system shortcuts like Ctrl+Alt+Delete or Ctrl+C. Check your full keybindings list to ensure no two actions share the same combination.