Creating adjustable subforms

[#1]

I have been looking in past forums and used the help function on Adobe, but am still missing something.  Here are my issues:

1. The information on the master page is overwritten by the table that I need to expand to fit for the comments and I can't seem to move the table down below the basic information.
2. I have gotten the comments to expand to fit, but when they show up, they are centered, rather than moving the line down.  Each new row needs to be a new item.
3. I still can't get the new row to show up when the user tabs off the final column.

I have attached the file for your reference.  Can anyone help me?  I know what I want to do is possible, but I am still missing something.

commercial web test 5.pdf ‏78 KB

[#2]

to fix the text input problem - go to File -> Form Properties -> Preview tab -> select Interactive Form on the Preview Type. how your field expands.

rename the subform to a better name (for example myTable) and move the button from the master page to your main area

the code for the button:

myTable.Table1.Data.instanceManager.addInstance()