How do I create a drawing mechanic in Construct?

I created somewhat of a prototype of a section in my game that involves drawing. I implemented the easiest way somewhat draw. But every time I draw, there's tiny dots making a trail.

Here's my technique how I did the glitchy drawings:

1. I make a tiny dot outside the layout

2. I test if the dot is coming to my mouse

3. I make the tiny dot copy itself onto mouse.x, mouse.y, when the cursor left button is down.

Hope you understand. If not, tell me.

Thanks for reading!

As far as out of the box Construct 2 instances of a dot/sprite is pretty much the closest to an actual drawing you will get.

You can look into the third-part addon "Canvas" and/or "Paster" which could provide you with possibly more advanced features concerning pixel manipulation.