Virtual Joystick
QGroundControl allows you to control a vehicle with on-screen virtual thumbsticks. These are displayed as shown below in the flight view.
INFO
Thumbstick control is not as responsive as using an RC Transmitter (because the information is sent over MAVLink). Another alternative is to use a USB Joystick/Gamepad.
Enable the thumbsticks
To enable the virtual joysticks:
Select the Q icon from the top toolbar
Open the Application Settings
Make sure you're on the General tab
Check the Virtual joystick box