AP Voucher Entry - Shortcut to go Back in to Grid?

SUGGESTED

When I'm in the AP enter vouchers window, if I'm on the Totals tab, is there a keyboard shortcut to enter back into the grid on the Details tab? I know that I can do Alt + D to go back to the tab, but I'm hoping to find a way to enter back into the grid without having to use the mouse. It's a bit a of a reoccurring issue because tax rounding, so it'd be really helpful. TIA.