This is a feature I've seen in Photoshop since ever, which is conspicuously lacking in Krita; the ability to modify a brush's horizontal-to-vertical ratio with tablet input, be it pressure or (more commonly) tilt angle.

The objective is to squash a brush as you apply pressure or tilt the pen, giving a certain calligraphy to the stroke. While I am aware Ratio is a variable of Auto brushes, I assume this feature would also work on Texture brushes if possible.

Reproducible: Always

Steps to Reproduce:
1. Poke around the Brush Engine settings
2. Google
3. Profit?


Expected Results:  
To have found said option either among the Auto Brush Tip options, or (as I suppose where it will be) among the Flow group of the brush settings.

Win 8.1, Tablet Wacom PTK-640 (Intuos 4 Medium)