How to Add Touchscreen Home Button on iPhone, iPad
Go to General > Accessibility.
Scroll down to the section labeled INTERACTION and tap on AssistiveTouch.
On the next screen, toggle AssistiveTouch to the green On position.
A white circle with a grey box will appear on screen. Tap this circle to expand it to a big box on screen.
How do I change the Home button sensitivity on my iPhone?
To change the sensitivity of the iPhone's home button, Open the Settings app → Tap on General → Tap Accessibility → Scroll down to “Home Button” → Tap on Home Button → Choose a speed → Tap the Home button.
How do I change the click settings on my iPhone?
Launch the Settings app from the Home screen of your iPhone or iPad.
Tap on General.
Scroll down a ways and now tap on Accessibility.
Under the Physical & Motor section, tap on the option for Home-click Speed.
Here you can choose between Default, Slow, and Slowest.