If you are the owner of a localization project and you want to allow the project admins to import/export strings to/from your project using your integration with a Git hosting platform, you can enable this feature from the project's settings.
After enabling the option Admins Can Use Integrations, the project admins will be able to access the integration from thier POEditor account.
If you want other users to have equal integration rights as your user, consider creating an organization, moving your localization assets there, and adding the other users as organization managers.