How to make whole RTC Server service read only
One answer
You can enable all the users read-only Privileged by assigning " Jazz Guest " repository Group permission.
" Jazz-guests users with read-only access to the Jazz Repository "
https://www.ibm.com/support/knowledgecenter/en/SSCP65_6.0.3/com.ibm.jazz.repository.web.admin.doc/topics/taddnewuser.html