Editing defaults roles - add some index controls to logstash

Hi guys !
I would like some help to understand how to edit “reserved” roles from the Kibana UI or from the configuration YAML files.
Before, I could edit logstash role but now in 7.2.0 it’s not possible from Kibana UI and logstash role is not present in the roles.yml default configuration file.

New version :

Old version :

I tried to clone it, delete the default logstash one and then would like to rename the clone logstash role but I get kicked out of Kibana, logged out.

Any ideas?
Thank you !