Adding seats to your account is a cost effective way to obtain more licenses of DEM earth.
Adding a seat to an existing account costs less than half the price of a new license.
You can add a new machine to an existing account from here..
TIP : This works well for you in combination with a floating license..
Use your DEM Earth license at home and work, without having to de/re-register.
For this to work, you need a floating license, and at least one additional seat.
Your DEM Earth account can contain as Many additional ID's as it has additional seats.