Triangle
3 points to clickDraws a filled triangle from three vertices.
What it looks like
The numbered dots are where you click. Once drawn, you can grab those dots and move them.
How to draw it
Click three places in turn and the inside is lightly filled.
When to use it
It marks a converging shape — it does not fit the edges for you.
In SQMATE
What you draw stays
Lines you draw are saved to that symbol's notebook. Open the symbol again and they are still there.
Editable afterwards
Grab the points to move them, and change colour, width and line style. Undo works too.
Shares as drawn
Send the chart as a single link. Whoever opens it sees the same lines.
Related tools
Drawing tools are a way to organise your thinking. A line you draw does not decide what price will do.