Chemical structures can be displayed in the center of merged Excel cells.
The following user interactions are possible with structures in merged cells:
Editing (either by using the Add/Edit Structure button, the Editor Pane, or by double-clicking)
Printing
Copying to the clipboard (as structure or as OLE object)
Exporting into a file
Using as a target for R-group Decomposition
Converting to string
Converting to shape (Image, Marvin OLE)
Applying structure filtering on it