Common branch permission for all repositories

Hi Team,

I have another query please assistance the same.

How can i set branch permissions for all repositories instead of set branch permission individual repositories ?
I want to set default branch permission for all repository @ cloud Bitbucket like Bitbucket server "URL: https://confluence.atlassian.com/bitbucketserver/using-branch-permissions-776639807.html "

Can you please provide some on line documentation links for resolve these two issues.

Regards,
Nitin Kumar