How to show preview ?

[niou142]

Hello,

I have a little problem. I would like to add the button preview.

But it didn'nt work :





Is it a configuration to do ?

PS : sorry for my english, I am french

[Jan]

Hi, did you enable it in Options?

Jan

[niou142]

Hello Jan,

Where is the option to enable it ?

EDIT : I have found, I have to go in control panel --> parameters (in top right)

[Jan]

Ok