Looking for the keyboard shortcut for Copy Format and Paste Format (or format painter)

The two keyboard shortcuts work independently of each other, not as steps of the same operation. IOW, use one or the other but not both:

• Shift+Command+c is associated with the CopyFormatting command. In effect, it is the keystroke for Format Painter. It copies only the formatting of the selected cell. When you move the pointer it assumes the Format Painter appearance. You can then click the cell or select the range to which you want to apply the copied formatting. This is a 'one shot' deal... you can't go on to paste elsewhere without copying again.
• Shift+Command+v is assigned to the PasteFormatting command. Copy the formatted cell as usual, select the target cell or range, then execute the keystroke which pastes only the formatting of the selected cell. This is a one shot deal as well.

Neither is documented in the article Mike provided the link to. My guess is that it's because they are new in this version & simply were overlooked or may have been sneaked in with an update after the list of keyboard shortcuts was compiled. In that regard, if they aren't working for you make sure your installation of the software is fully updated. The current version should be 15.21.1 or later.

There is no explicit menu command for either Format Painter, Copy Formatting or Paste Formatting.