Yes, you can.
There is no limit to the number of bank accounts.
How to add a bank account;
Once on the dashboard, proceed to the settings tab.
Click on the panel and a drop down menu appears.
From the menu, click on financial institutions, then bank and proceed to select Create Group Bank Account as shown below.
Settings>Financial Institutions>Banks> Create Group Bank Account.
After filling in the details, click on Save Changes.
Bank Account Successfully added.!