the ability to add a custom dictionary, this would be useful in two ways
- being able for adding a second language dictionary (non English)
- adding a specialist dictionary like Spellex which is a legal and medical dictionary which is essential in getting people onto this fantastic product rather than word.
Hey @chrisswain, 
Thanks for the suggestion — custom dictionaries would indeed be very useful!
Just to check: does your idea match this existing request from 2023?
https://community.onlyoffice.com/t/custom-dictionaries/2916
It covers adding support for second language dictionaries. If it’s the same thing, feel free to add your voice there — more comments/votes help push it higher on the list!
If it’s something different, let me know more details. 
Appreciate your feedback!