Pre populate Table

Hi there,

Is it possible to have the table pre-populated at all?

I am doing a table that displays a products attributes. Some of the details vary, but always starts with the same fields. For example, all products might start with size, colour, material etc. but then some products may also have additional fields.

Is there a way to pre-populate the initial rows that are always the same (the labels not the values) and then they can add more if they need? BUT they can also remove one of the pre-populated ones if they need.

Thanks!