How to Set Up Employee Expense Reporting?

When I began with this company, I replaced the previous bookkeeper with no prior QBO experience. Somehow when the company was started, there was a shareholder loan account set up for the owner. It appears on QBO as a bank payment account if that makes sense. Importantly, right now the owner and business do not owe each other anything; this account was set up for the owner to loan money to the company to help with cash flow during the pandemic. It has all been repaid.

A lot of transactions have been misassigned to this account - anytime the owner purchased something on his personal credit card for the business and was reimbursed, both the expense and reimbursement were assigned to this account. 

My question - how do I keep track of employee expense reports? In this case, all of the personal credit card charges should have been assigned to an expense report and then the employees expense report would be paid off. Do I make another bank payment account for the owners expenses and just assign all personal card payments and reimbursements to this new bank account? Or am I missing something?

Thank you!