If you wish to upgrade your current version of TSplus, in order to add more users or more features, click on the "Upgrade Edition or add users" button on the License tab:
On the displayed window, you can see which edition you currently have and your number of users. Below is your Upgrade License Code:
When you click on the "Check Upgrade price" button, the following webpage opens and you can choose which edition you wish to upgrade to, with the number of users, for example here, from a Mobile Web Edition to an Enterprise version:
If you have a version 7.xx or below, go to the store page on our website and download the Upgrade License Code generation program, in order to get your Upgrade License Code.