Pre populate new form in dropdown list

[fabio_pedone]

Hi, i have a table1 that refers to table2 in a column type ref , with dropdown view.
if i ned to “add” new row ( es new customers) directly from this view in dropdown menu, and populate some rows depending from current choose in table 1, how i can do it ? i know how works the linktoform, but in this case , i want to do it from “New” action in dropdown menu