I watched some Inkscape tutorials, and came across a wonderful feature in Inkscape to quickly change thickness of a path or an object by hitting
CTRL + 0 and
CTRL + 9. But I've searched all over the internet, searched in
Preferences -> Interface -> Keyboard Shortcuts and I haven't found anything regarding this feature.
From my understanding, these shortcuts make the object bolder or thinner by approximately 1 pixel. But in some cases, I'd really love to change the step value of this operation, so instead of making object 1 pixel bolder, I make it 0.5 pixel bolder.
So my question is, how is this feature called, and how do I adjust the value which used to perform the transformation.