Sorry for your question taking so long to be answered, but better late than never! 🙂
If you have two or more data frames, what you want to do is "Activate" the frame you want all information loaded into.
To do this: Right-click the data frame you're interested in. From the menu, select Activate. You should see the frame's title in bold letters now. Now all data you add will go into that frame.
Good luck!
Rob