Is there a way to prepopulate a grid with rows? I would like to spare the user t

You can certainly populate a grid when the form is loaded by defining each of the columns' respective default values. If you have a specified number of rows which need to be filled in, then perhaps you can have a read only column defined by an array of numbers. This column being populated would then create rows containing each of the other columns in your grid.

Yes, you should be able to put the default value for one of your columns as ={"",""}, which would make two rows appear. You wanted more, just add more double-quotes.

i would recommend using the empty quotes on a required field only. Otherwise, the non-required field would save empties into the variables.

Thanks a lot for the input! Is there any way to manipulate the grid (add rows/delete rows) using javascript?