[William Cousert]

Sorry, you are correct. I am totally new at this.

Dragging the lower right corner of my rectangle…

.............+-------------+
.............|.............|
.............|.............|
.............|.............|
.............|.............|
.............+-------------+

should result in this...

.............+-------------+---+
.............|.............|...|
.............|.............|...|
.............|.............|...|
.............|.............|...|
.............+-------------+...|
.............|.................|
.............|.................|
.............+-----------------+

Not this...

..........+--------------------+
..........|....................|
..........|....................|
..........|..+-------------+...|
..........|..|.............|...|
..........|..|.............|...|
..........|..|.............|...|
..........|..|.............|...|
..........|..+-------------+...|
..........|....................|
..........|....................|
..........+--------------------+

(replace the .’s with spaces. the board don’t like multiple spaces)

What am I doing wrong?