Export Issues to CSV enables you and your team to export all the data collected from issues into a comma-separated values (CSV) file, which stores tabular data in plain text.
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Permissions in GitLab are fundamentally defined around the idea of having read or write permission to the repository and branches. To prevent people from messing with history or pushing code without review, we've created protected branches.
With GitLab Enterprise Edition you can restrict access to protected branches by choosing a role (Masters, Developers) as well as certain users.