Currently, the Spreadsheet control from our suite supports merged cells that are not automatically generated. However, your description implies that you want a data bound control so Spreadsheet may not be the best option.
Basically, we plan to have a column property that controls the vertical auto-merge behavior column-wise. You can have columns that auto-merge alongside others that display all the cells. Thus, you will be able to display a separate cell for each record for the copy/paste/delete options. Does such a property makes sense for your scenario?
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