Adding rows dynamically in a table UI element

Hello Experts,

I have simple requirement yet complicated to implement within ABAP Webdynpro.

The requirement is as follows:

I have a table, with 2 columns, first one is a dropdownlist and second is an input field.

When the user enters details in inputfield, a second row must be created dynamically with the same structure (dropdown list + input field). Thus, an additional row N must be created dynamically when user enters details in row N-1.

Can someone help me in implementing the requirement in ABAP Webdynpro?

Thanks and regards,

Nitish.