Adding a button to create a new child record
I want to have a few drop down selectors connected to fields on a child table. I want to be able to select a combination of 3 or more of these selectors, creating a unique combination. I then would like to hit a button that would save these values in the child table and create a new record. I then may want to select another unique combination to save and create a new child record (and so fourth).
Additionaly, I want a portal so I can see what records have accumulated thusfar.
So, my question is how can I create a button to create a new child record in this situation?