Master Detail Auto Insert

Question

Hi:
I have a SQL report from which I use a link on the ID. When user click's on the ID a Master Detail form shows all the Master and Detail Rows. Working Fine.
Problem: I need to create new Master detail records.
My Approach: I have created a menu item using the same link as used in the report to take the user into the same MD form for doing the Data Entry.
What I am trying to do is before doing the query check for the parameter coming into the form, If the parameter is blank then call a procedure which creates the master and detail records using seq. number and returns the seq back to the calling procedure. Then pass the returned number into the parameter and let the form keep doing what it wanted to do.
I don't know what is the paramter names or values to check for. If anyone has any syntax examples or any other ideas to work around this then the help will be greatly appriciated.
It will be really cool if I don't have to call the procedure until the user hits the save button that way I won't loose any seq. numbers
Thanks

Answer 1

To get the list of parameters you should go to component management screen, then click on "Show call interface" link, it will show the complete list of parameter MD form accepts. But you can only link to the master section of MD forms.
Second, you still will be losing sequence numbers regardless of form behavior, a better solution is to keep a separate table holding the last number and populate the key field via trigger.