A two columns mode problem

[Rodolfo Medina]

Hi.

When I'm editing a two column buffer:

- first I `C-x i' the file I want to put in the left column;
- then I go to the place I wish and do: `C-x 6 s' and the right column is
  created;
- I go back in the left column and do: `C-x 6 1' to merge the two columns.

Now, if the right column is longer than the left one, it is cut off.  Is there
a way to avoid that?

Thanks for any reply,
Rodolfo