Pasting into the data table is now faster, and works even when the data table is sorted.
To paste data in (e.g. from a spreadsheet), simply copy your data, then select your row/s, and paste (Ctrl/Cmd + V). Causal will "paste over" whatever row/s you had selected.
If you don't want to paste over what you have already in the Data Table, then create a New Item at the bottom of the table (you may have to take off alphabetical sorting if you have that applied), select that New Item, and paste over that.