Column mode does not work properly

I came across the post about using column mode via holding down the ALT key and dragging the mouse to select.  Personally, I prefer Ultra-Edit's one-time column mode setting.

However, when I was testing column mode, I found that it did not perform as expected.  The problem is that after making a selection, I cannot insert new text at every row of that column.  I can delete but not insert.

Here's an example.  Let's say I had this text:

if statement true {
  random bit of code;
  loop {
    more random code;
  }
}

Now, if I want to indent the entire block of code to the right, I would use column mode to create a line (not selecting anything) on the left-most part of the page and then press spacebar to indent.  What results is that only the first line of the selection is indented... the rest does not move.  (Yes, I know that tabbing a selection in N++ will indent it over.  I'm trying to make a point)

Here's another set of text:
superman
superman
superman

Let's say I want to change that text to all say "sup-woman" using Column Mode (and yes, I realize a Find/Replace can do that.  I'm trying to demonstrate the usefulness of Column mode insertion).  I would highlight the "er" columns and then start typing "-wo" and it would be done for all rows.  However, this is the result of doing that in N++:

sup-woman
supman
supman

It deleted the colums correctly but could not handle insertion.

Please correct this.  This feature is pretty unique and powerful when it works properly.