(NEED OUTLOOK EXPERT) SOLVE GMAIL ISSUE in OUTLOOK 2019

(NEED OUTLOOK EXPERT) SOLVE GMAIL ISSUE in OUTLOOK 2019 Overview: I currently have: (20 regular .PST email accounts) + (10 gmail accounts) I'm trying to import (10) Gmail accounts to newly installed 2019 Outlook after Carbonite Backup Restore ON NEW COMPUTER I MUST have all emails come through (Unread Mail Box) I MUST be able to add the Gmail accounts utilizing my previous (Personal Files already set up) I DO NOT want to create a new outlook data file folder Problem: 1. In restoring Carbonite and importing emails to Outlook 2019, Gmail accounts are not able to find the existing .pst or .ost file in the restore. 2. This creates a separate new file folder down below all of the personal folders listed. (I don't want to have new file folders down below) 3. This causes a great deal of confusion in working with email folders and keeping up to date with email communications. 4. I want the Gmail accounts to utilize the existing folders already in the personal folder files. There are rules that already exist for those Gmails to go to the associated personal folders. Things I've already done: 1. I have attempted to manually add emails using POP and IMAP settings, but cannot because Outlook cannot find the existing .pst or .ost file. 2. I have already gone into the gmail account to enable POP or IMAP prior to trying the setup in Outlook 2019. 3. The only way I've been able to add them is to create a new outlook data file. (I don't want to do this)