Paste cells - to create columns and rows
We should just be able to import by pasting the table to create a Spreadsheet.
It is known that HSQL fails at concurrent transactions, so submitting 20 pasted cells doesn't work well. Please only use Postgres here.
To copy cells from Play SQL, one shouldn't select text. If you select the text in the cells, you're copying the text; If you select the cells themselves, you'll successfully copy the cells.
Users often have an existing table they'd like to import.