What are the break points for the number abbreviations changing from k (thousands) to M (millions). Sometime you will see 6,765k. Is it 10 million? Are there any ruls from changing from singles to thousands and so on?
The breakpoint is roughly 10, e.g. 10k, 10 million, 10 billion... However, Omniscope will adapt following more complex rules, since you typically have a mix of large and small numbers. You can turn if off using Measures > Automatic numeric abbreviation, although currently this doesn't take effect for the 2.7 bar/line view scale labels.
Omniscope determines a level of abbreviation to suit each chart. The wrong level means you'll have lots of zeroes or too much rounding. The only control you currently have is to make each bar independently abbreviated (you'll probably consider this even worse) or to turn off abbreviation altogether (resulting in too many digits/detail).
I've reclassified this as an idea - option to configure fixed level of abbreviation.