Hi !
I asked this before and got no real answer so here goes again

----A----B----C
1............0              B1  is where I want to enter a number lets say 5
-
2
-
3............0              B3 is where I would like the answer total to be

  So if I enter the 5 in B1 and press enter the 5 will show in B3

 I would like B1 to return to 0 (zero) while still keeping the 5 in B3

 When the next number is entered into B1 say a 4 and enter is pressed B3
would add
  the 5  that is already in B3 to B1 and give an answer of 9 in B3
returning B1 to 0 (zero)
  Adding the numbers is simple but how do I keep the number in B3 while
returning B1 to 0 (zero)
Or how could I lock B3 to so that it could stay as it only allowing it to
increase by the value of what is entered into B1 as all numbers entered into
B1 will always be added to B3 the valve will always be increased never
decreased

Hope someone can help me.
TIA
Mike
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Show me and I'll remember
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