How can I apply conditional formatting?

I know the concept of conditional formatting, but I can't find a way to apply it in my forms. I tried the context menu of the cell that I want to hide, but there's no property for conditional formatting. How can I apply conditional formatting?
1 answers

Conditional formatting can be applied in two ways:

  1. On a row: by right-clicking a row; select row; right-clicking on the row; set conditional formatting
  2. On a widget: by right-clicking on the widget; set conditional formatting

In the menu you can select the behaviour of the widget/row for every enummeration value.

Hope this will make it clear.