This feature has been used in many drawing pads like MagmaPop's and TheWeirdFreePop's, now you can learn the code! It's a little confusing so if you have any questions write in the comments below!
•First make a Simple Drawing Pad.
•Then make a second text. Make a when iPad is pressed rule and add A set position block inside a leave a trail block. The first picture is the x, the second is the y!
•Now on a new rule, make a when iPad is tapped, and use the same code on a set position block.
AND YOUR DONE!
Don't understand the tutorial? Check out my Symmetry Drawing Pad for the exact same code! Any questions? Ask me below!