In QuintaDB you can easily split your big form into several smaller forms and join their logic using a Redirect URL option.

The first form will ask you about product name and price. The second one is about shipment day. The third is about the store that will receive the cargo:

Trick: Redirect URL for joining forms

Simply create three forms, customize them. And update settings one by one.

The first step is to customize the first form and to copy paste a direct link of the next form. Go to Form widget menu and next - Settings tab. See the screenshot below:

For the second form use the third form direct link.

Splitting complex forms can be done not for all the forms. So, please, be careful before you move to paginated forms, do not delete your previous big one. Hope you've found it useful!