Comment 4 for bug 1438936

It is not so easy and I never got any feedback that it was used.

There is no easy solution for the padding, the only way I can think of is to format everything in a way that the width of the text never changes. Digits are normally all the same width, so that means sticking to one unit per shown information (eg kB) and maybe using 'FIGURE SPACE' (U+2007) unicode characters.