Thanks for the list, quite extensive 
Some of these features are already being tracked internally, I’ll add your cases to them. Others I will add as new issues.
For the sake of completeness I have made new feature request posts (where necessary) for each here on the community forum. Please add more information/suggestions in the separate posts so we get a full image of what the feature could/should be. (note that I merged the ‘Define width column’ and ‘Autofit column name and content’ as this is a related issue).
- Latex names Column
- Wrap text column (allow \n)
- Rotate headers (did I interpret your idea correctly on this one?)
- Allow default value on creating new row
- More obvious way to add row (please elaborate some more on suggestions here)
- Change open OptionField from 2 clicks to 1 click
- Autofit columns based on column name & row content
Thanks for your contribution!