omitCenter asymmetrically

[Rizhiy]

Is your feature request related to a problem? Please describe.
I have a lot of log files which start with the same prefix and are quite long.
The important part (such as date) is at the end of the filename, so I use omitCenter to see it.
Unfortunately, sometimes I can't see the whole of the right side.
Left side is mostly the same, so not as important.

Describe the solution you'd like
Having syntax with something like [filename keepLeft 3 omitCenter 1 fillRight 1] where only 3 characters at the start are shown and the rest is end of filename would be better.

Describe alternatives you've considered
A clear and concise description of any alternative solutions or features you've considered.

Additional context
Add any other context or screenshots about the feature request here.

[weirongxu]

If your filename coolumn doesn't use omitCenter, but just a [filename], in this case, it's possible to display the entire content?

[weirongxu]

This part of the feature is really missing a lot of documentation, I will think about how to improve it later. In addition, there are actually two modifiers called omitLeft and omitRight used to ignore different positions.

[Rizhiy]

omitLeft seems to do what I need, but as you said it is not mentioned anywhere in the docs.