Is there a way to have manual input rows in a NR Report

I have a request that a NR report include rows where my user can input numbers manually into the NR Report. Some of the numbers in the NR report are pulled directly from FCCS such as beginning balance March 31, and ending balance June 30. They want to "fill in" numbers in between the beginning and ending balances. In the attached screenprint that would be rows 7 through 17.

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To resolve this, I added rows 7 through 17 and put a row formula sum(0) and advised them that they would have to edit this formula by + ($$$) the amount that they want to add.