By using JQL Editor, users can easily:
Create a new spreadsheet from the spreadsheet page.
Update current JQL.
Only project admins can create or update spreadsheets in the project view.
Other non-admin users can only create or update spreadsheets on the main view.
This feature is currently available for Cloud only. Write your feedback if it is important for you to have this in Server/DC.
Users can hide the JQL Editor by disabling it in the setting.