ah i see, so it looks like to prefill AND hide a field, i'd dohide_visable=true&prefill_visable=testto set visable = to "test"

@marks yeah - pretty sure this doesnt work anymore.prefill_ does but hide_ does nothttps://airtable.com/appxFEc3Vqy3P9CdV/pagyc0qGiTXWosDkc/form?hide_visable=yes^ visable doesnt hidehttps://airtable.com/appxFEc3Vqy3P9CdV/pagyc0qGiTXWosDkc/form?prefil...

@marks did the new form builder break this feature - i can't get it to work anymore