"Check all checkboxes" option for ACL rules in Ratel

Moved from GitHub ratel/133

Posted by danielmai:

It’s common to create groups that have read-only access to all the predicates. It’d be nice to be able to set the read-only permission to all the predicates via a checkbox that would automatically set the corresponding permission (read, modify, or write) for all the predicates. Today, you need to check each box one by one for each predicate.

Aelbannan commented :

#144