I'd like to find an empty cell within a range and then
check if the following cells are empty too. The following
command creates a trendline if a cell is empty. But this
is not enough; all following cells within the range "b" &
vol1 need to be empty as well ... (the if/ else is just
used if the value is the first entry in the range).
I hope you understand what I mean ... Can anybody help?
Thank you!

If IsNumeric(.Range("b" & .Range("vol1").SpecialCells
(xlCellTypeBlanks).Cells(1).Row - 2).Value) Then trendlin
(1) = .Range("b" & .Range("vol1").SpecialCells
(xlCellTypeBlanks).Cells(1).Row - 1).Value - .Range("b"
& .Range("vol1").SpecialCells(xlCellTypeBlanks).Cells
(1).Row - 2).Value Else trendlin(1) = .Range("b" & .Range
("vol1").SpecialCells(xlCellTypeBlanks).Cells(1).Row -