Hello,is it possible to choose in a view between 2 or more buttons (p.a. different products) and if I press p.a. "product 1" it opens a form for "product 1" and if I press "product 2" it opens a form for "product 2"?I have found "ref views", but how ...

Hello,if the operator will insert a new serialnumber the app should check that the same serialnumber doen't exist in the same coloum in a previous row. How can I do that?