Created attachment 110799 [details] Sample file for test E.g. copying a cell inside a conditional formatting range on other cell of the same CF range, breaks the range in the source CF and adds a new CF for the target cell. I don't know if it must be so or not, but in variety of works we finish with a lot of CF ranges, what can affect the spreadsheet performance, specially for entering data, or for editing CF. An option in the manage CF dialog to reunify ranges with the same CF would be very useful to reduce the complexity of work with a lot of CF, and achieve of bit of performance, while it's not automatically applied if having the ranges break have some meaning.
Valid enhancement, setting as NEW
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