The options under Sharing Permissions specify actions that can be performed for the user. "Comments" should thus be a verb ("Comment"). This would also keeping the naming consistent in this section.
- Add a document
- Navigate to Sharing modal by sharing document
"Comment" should appear under Sharing Permissions
Tomcat 9.0.17 + HSQL 2.3.
Portal master 2e6e62eeef01c87841945cd2ca95e3c6ad56984a
Portal 7.2 CE GA1