Lets design the template for the buttons, and print it out

 

   

Select the Interface tab, it is in the lower left part of the interface

We now have the template to design the text or logos on the panel

Double click on the text next to the Power on button.

Type ON

Double click on the text next to the Power off button.

Type OFF

Let's add symbols for volume up and down

Select the menu Insert and Symbol

Find the symbol for volume up, click on the symbol and drag it onto the text field on the panel.

Find the symbol for volume down, click on the symbol and drag it onto the text field on the panel.

Now your panel should look like this

In the top of the screen, select the tab Interface

Select the Print icon

In the new window, make sure to select Microsoft Print to PDF is selected

Click Print and save the PDF file.

You can print it and cut it out to add it to the panel

 

 

The next and final step is to upload the program to the panel

 

See the step-by-step guide here