insert data into a portal either new or editing

Ok this is my problem I have a database with a portal for topics in which a actual schools class will cover. So lets say the main database is "descriptionOfClass" and the database in which the portal comes from is "topics" (there are only 8 at most topics in this portal) I want the person to be able to create a new class which means they will have to add topics to the "topics" database(the portal) as well as add the information to the "descriptionOfClass" database hopefully on the same page and form. Also when they go to edit this information i want the topics to indiviually or in one box be able to be outputed in a text box, many text boxes, or whatever it will be able to be inserted back into the database with once changes have been made to them.

If you need more information just ask. I did not create this database so if this is badly set up it is not my fault. I have never worked with Filemaker before 1 week ago and i alreayd have it done besides this. I just didn't want to do anythign elaborate (such as javascript etc.) without researching and maybe coming up with some sample code first.

Thanks so much in advance,

Paul