A family of Microsoft spreadsheet software with tools for analyzing, charting, and communicating data
Paste Special is not fully supported in the free online software except for a few options. They can be selected by using the ⌵ on the Paste Tool, by right-c;licking the target cell or by using the Paste Options button which appears after pasting. Other than Paste, itself, I don't believe keyboard shortcuts have been assigned to any of them.