# How to use AE without a license

Appearance Elements can be used, license free to interrogate and manipulate previously measured data.

It is not necessary to connect an instrument to access this feature.


Click the Device icon (1) to access the connection menu.![image description](../_images/1769526684546-device-button.png)

Press the arrow button (1) to enter the viewer menu.

![image description](../_images/1769769511438-2026-01-30_10-37.png)

Select the device type required (1)

![image description](../_images/1769770527808-2026-01-30_10-37.png)