Adding multiple rows dynamically based on sizes - Need Logic

That is good idea I will try that.

I already did this but, since its a screen form, it was not allowing me to use button more than once.

The form I am using is to submit the details of Product for the first time. So if I use overlay form for sizes (before the actual form is submitted), I won’t have product details in Size table and won’t be able to link product with sizes.

How would I link a product (which is not yet submitted to Database) to the sizes which I will add through Table/collection?

Thank you for all your help