Some project members have "ready only" permission, how can they get "edit" permission?

[Deleted user]

If some project members open my plan, there is written "read only" next to the plan name. 

I gave them "edit" permission via the plan configurations, but it is not working.

How can I give them edit permission?

[Pramodh M]

Hi @[deleted] 

Welcome to the Community!!

Here it is

Here's the reference

https://support.atlassian.com/jira-software-cloud/docs/set-permissions-in-advanced-roadmaps/

Thanks,
Pramodh