To enable transfer of funds between my personal and Business bank, the personal did a small trail transfer in and out. How do I categorize this in the bankfeed in QBO?

It's a transfer, so you post it using one of these QB options: transfer, expense, or deposit. As long as it's coming from one bank account to the other bank account, it'll be good. If you don't include your personal bank account in QB, then you're posting the transfer to or from Owner's Draw or Owner's Equity to the Busines Bank account.  Good luck!