Price Editor question

[Dallas Vanselow KC8HQS]

Hello.

I'm attempting to input stock info so my stock investment will 
automatically update.  I was following what the user guide said but it's 
either incorrect or I'm missing something.

I open up Price Editor, which has nothing in it.  I click "Add" and put 
in the information on my stock.  When I click "Apply" or "OK" it tells 
me "You must select a commodity."  Where do I select the commodity?

Thank you in advance.

Dale