Currently a translator with edit access to a specific customer does not have that customer preselected when opening translations. Instead, the base customer is selected by default with read-only access, which prevents the user from making changes. The translator must manually select the customer they have access to from the customer list before they can start working. This can be confusing for new users. Goal of this feature is to automatically preselect the customer that the translator has edit access to when opening translations, allowing them to start working immediately without needing to manually change the customer.