With Virtual Trackpad on iPad, you can turn a small region of the screen into a resizable trackpad, and use it to move and click an onscreen pointer.
Set a custom action to open Virtual Trackpad: Tap an action (such as double-tap or long press) below Custom Actions, then choose Virtual Trackpad.
Go to Settings .
Do any of the following:
Drag your finger on the trackpad to move the pointer.
Tap the trackpad to click at the location of the pointer.
Drag the arrows in the top-left corner of the trackpad to resize it.
Drag a border of the trackpad to move it.
To close Virtual Trackpad, repeat the action you use to open it.
Go to Settings Adjust how iPad responds to your touchAccessibility features for mobility on iPad