My excel form only tabs along one row when protected

I have created a form for work that can be used on mobile computers for time keeping (Dailies w/ narrative) and then printed out. The problem I have is that when I protect the sheet it will only tab across the columns to the end of the row. I want it to tab to the next row or next field down without having to place the curser there. I have locked all cells that are not for entry and unlocked all those needing input. Is there a way to format the form so the tab will take it from one cell to the next from teh top of the page to the bottom?