Widget key (this must be a special, predefined condition? I have no idea) Display condition (same here)
And how do I get the right code? Is there only the option of using the page source text and then modifying the code accordingly? I find this to be quite complicated for website operators who have little or no knowledge of HTML. XF should make this better and easier in the future.
All I want is to add a small block to the sidebar with a small banner. But it already fails because I don't know what the two conditions marked in bold are all about. And that I cannot find the entered source code via the "template search". So I don't even know which template to edit. This can be quite frustrating for a newbie.