How can I paste a bunch of data from a collection/spreadsheet into a StarLifter collection?

I copied data from cells from a spreadsheet and I want to paste this into the grid in StarLifter but there are no blank rows to insert the data.

After you copy your data you can use the command

Command+Shift+V (Mac) / Control+Shift+V (Windows)

To paste data into the grid. Although there are no blank rows visible, this will create new rows to the bottom of the collection