Hi Senji,
Mudface has posted a nice option, and an event macro would also work.
A third option...
Select your three cells A1, B11, C15 by holding the Ctrl key when you click on each cell separately.
With the three selected, in the Name box, name the range. "DataEntry" for example.
In a workbook_open event, you can use something like:
Range("DataEntry").Select
You can always reselect the range from the from the Name box as well.
You can now <tab> or <enter> between the three cells.
Bye,
Jay