Below is one response to your multi-post in .worksheet.functions
(Please do not multi-post)
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One play to restrict the scrolling area..
In a new book, try the sub below,
which is to be placed in the "ThisWorkbook" module
Right-click on the Excel icon just to the left
of "File" on the menu > Choose "View Code"
(This will bring you direct into the "ThisWorkbook" module)
Copy > Paste the sub below into the code window on the right
'--------
Private Sub Workbook_Open()
Worksheets("Sheet1").ScrollArea = "A1:B10"
End Sub
'--------
Save the book, then re-open it, and test it out.
The scroll area in Sheet1 will be restricted to the range as defined,
viz.: A1:B10
Adapt to suit ..