Layout customization for Knives Out (mobile battle royale). Best Custom HUD Settings are also included. Please use this as a reference when looking into Knives Out customization.
How Many Controls Do You Use?
Two-Input Setup

This setup typically involves using the left and right thumbs for controls, which is common among many players. Some also choose to place their device on a surface and operate it using both index fingers for better precision.
Three-Input Setup

Similar to the two-input setup, this method uses the thumbs while also using the left index input to press the fire button. With three inputs, you can move with your left hand, aim at enemies with your right, and shoot simultaneously.
Four-Input Setup

This setup builds on the three-input method by adding an additional control. In the example shown, the scope button, commonly used in four-input configurations, is placed in the top-right corner. This positioning allows for quicker ADS (Aim Down Sights) and improves shooting accuracy.
Important Notes
It's not necessary to place buttons exactly as shown in the images. Try to arrange the buttons you use frequently or those that suit you best in appropriate locations.
Which Setup Is Best?
Conclusion
To state the conclusion first, any number of input is fine. This is because the number of inputs used will change depending on the button layout that suits you. However, depending on the button layout and the weapons you use, increasing the number of inputs can sometimes make it easier to get kills.
An Example is the Type 81

When hip-firing the Type 81's 3-round burst with two inputs, you move with one input while aiming at a moving enemy with the other. This makes aiming difficult.
Unlock Its Potential with Enhanced Controls
With three inputs, actions like movement, aiming, and shooting become more fluid. Adding a fourth makes ADS even easier. It's not required, so prioritize with what feels most comfortable for you.
Create Custom Control Setup
Go to the Firing Range and Customize!

First, select 'Firing Range' from 'Leisure.' Customize to your liking in the Firing Range. You can also change the button size and color intensity.
Edit from Screen Layout!

Once in the Firing Range, open Settings. Inside 'Operation Settings', there is 'Screen Layout', so select that.
Select a Plan and Start Customizing!

You can save up to three customization plans. If you want to make minor adjustments or try a new layout, try it on another plan.
Size and Transparency of Each Button

Everyone has different hand sizes and reach, so it's important to position buttons where they feel natural and are easy to press. After finalizing your layout, simply tap 'Save' to apply your settings!
About Size
This feature allows people with large hands to make buttons bigger and those with small hands to make them smaller. If they are too small, you might occasionally fail to press them, so adjust to a moderate size.
About Transparency
Button transparency can affect combat. In areas where you need a wide field of vision, if a button's color is too opaque, an enemy might happen to be obscured by it, making them harder to spot. There's no need to make them completely transparent, but making them slightly fainter is a good idea.