Collaboration in the Designer page at the same time (Team plan)

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I was wondering if it’s possible to collaborate with team members at the same time.

●Although officially mentioned as follows, I’d like to know if there’s any hack to collaborate in Designer page.

Note: Each team member can use the Designer to work on a different project at the same time but not the same project.

●If it’s impossible, instead, can we work on different directories in copies of a project separately and integrate pages later?