You can make drawings with Breakdown Notes. While it's not meant to make the most impressive paintings, it can be usefull to draw your own line segments or shapes. Not just that, you can actually draw shapes and connections, that you can move about by dragging. Here's how.
If you have a touchscreen, you can use a stylus (or your finger) to draw. If you don't have a touchscreen, you can draw using the mouse. For both, you will first need to enter "draw mode".
To enter draw mode, just click and hold shift, then control. This should change your cursor. You can also enable draw mode
from the "Drawing" menu. Just toggle the button
Now you can use your mouse or a stylus to draw shapes on the map. To exit draw mode, just hit the escape key, or press the toggle button in the draw menu again.
Normally, when you start drawing a canvas will be added. All of the strokes you draw in one session (from Entering until exiting draw mode) will be positioned on the canvas. After you are done drawing, this canvas will be enlarged so that in encompasses all the strokes.
This canvas, you can move about and moving it will also move all of the strokes you drawed. Individual strokes can also be moved around, and can also be styled (color , stroke width)
There are different pencil sizes. Choose one, but remember you can always change the stroke width later.
There is also an option to choose a smoothness level. This is there to control how similar the path as you draw it and the path as actually displayed must be. A more smooth path will sometimes look nices. But if you write text, you better go for precision. This one cannot be altered after a stroke has been drawn.
If you enable "recognize shapes", you will be able to draw shapes to which you can add text, just like you would
with any other shape. This shape, you can also connect or resize, just like any other.
To make such a shape, you will have to draw it in one stroke and make sure you start and end your stroke at the same position. If you do that, you will see confirmation in the feedback menu.
if you exit draw mode, you can add paths between these shapes, just like you would do with for instance a rectangle. To make more complex paths, you can also enable "recognize paths". Once enabled, if you draw a shape from one shape onto another a path will be made connecting these shapes. This path will auto update when you move the shapes.
It takes some getting used to, but with some practise, you will get the hang of it.