1.
Locate the account (in case of multiple accounts) that you would like to change the default amount.
2.
In the DA column, left click in the box that corresponds with your account (in your case, it will have a 1 in the box).
3.
A window will appear requesting a new default amount of lots.
4.
Type in the number of lots that you want the New Position window to default to and click Ok.