# SAP Inspector

To examine the structure of the SAP Front End interface, Astro Studio includes the SAP Inspector panel. To start working, you should click the "Update the Tree" button ![](https://1755238209-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNnEkyZmLMSWTDXxpygbG%2Fuploads%2Fgit-blob-f95d4118262ddf027debf15a02b34a7ced5b12ce%2F0%20\(70\).png?alt=media). After clicking the button, the inspector will start examining the active application window and display its structure. The left part of the panel shows the control tree.

![](https://1755238209-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNnEkyZmLMSWTDXxpygbG%2Fuploads%2Fgit-blob-8160662ce4911df89c7b397f5c6b8abce00a3a53%2F1%20\(94\).png?alt=media)

When a controller is selected, its attributes will be displayed on the right side of the screen.

![](https://1755238209-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FNnEkyZmLMSWTDXxpygbG%2Fuploads%2Fgit-blob-cfa29ef8a248defd632e498fe1ed670e1761797b%2F2%20\(16\).png?alt=media)

This information is convenient to use when building SAP Front End element search templates.