General Chevron Queries

**High Priority**
1. How will formatting of Trt Groups be applied (incl. wrapping suggestion if needed)? Outside of Chevron?
2. I still like the idea of defining in Chevron for each template whether we expect Planned or Actual Trt, and this be defined with a var at a global level - could we discuss?
3. Each dataset needs `df_explicit_na` applied to them - need a `dm_explicit_na` - and where is this done?
4. Set-up of `dm` and keys could be standardised, part of Chevron? Also a new way for many to be working with data manipulation - this ok?
5. COVID filter flag is based on `ADSUB` - do we need to think how users would attach to `ADSL` ahead of filtering?
6. Reporting conventions not being followed - do we strictly apply or discuss/challenge? Example display of `NE` when stat not computable, dp one more for `mean`/`median`/`SD`, etc.
7. General - where is filtering / titles+foots being done now, in Chevron or outside and how much do we need to be testing?

**Low Priority**
1. If a number is to 1d.p. (eg. %), can we set to 25.0 rather than limiting down to 25? Is this an R or rtables limitation?
2. Can we get alignment within brackets (eg. show 2.5% in brackets as ( 2.5%) rather than (2.5%))
3. If filtered data does not generate a report, a null report is required to be produced - is that Chevron or outside?
4. If data is not present in a treatment group, how can we still control presentation of the treatment group (eg. AE tables to show 0 events)?
5. Flexibility of label of `Patient` to be changeable to `Subject` or `Participant`?
6. Is there a background dataset that can be put forwards for QC?

@insightsengineering/chevron