Only Administrator user can manage roles.

Yes. To do so, access the Roles section and open the New Role window by clicking on New Role. The topmost menu allows you to choose between File, Actions, and Help. Click on Actions and choose Copy settings from Role or Copy Group Members. This will open a new popup window. It will allow you to either search for Roles or Groups or choose any offered in the list below. If you choose any of the offered Roles or Groups, it will automatically adjust all the settings in the Items tab.

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Managing Roles

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How can I modify Role information?