In the program, open the Extension Manager by clicking this Extension Manager button in the top-right corner of the program window (see Figure 1). The Extension Manager dialog opens displaying the Home section.
Figure 1
Click the Get Extensions button. All currently available Extensions are listed on the left side of the dialog.
Select the desired product extension and press the button Download & Install.
The Download and Install dialog displays the contents of the selected Extensions. Click Ok to download the Extensions.
If the download was correct you will now receive a message that the extension was successfully installed.
You will also receive a message telling you that this Extension requires a license.
Next step is to go to the My Extension section and order or activate the license required.
Read more about installing extensions.