\label{Authoring_Daxe_Radiobuttonresponse}
To create a new radio button response, place the cursor directly inside a problem,
and use the ``One of N statements'' response template. This creates a basic radio button response.
\includegraphics[width=0.03\paperwidth]{daxeradio}
Response elements in general represent a user interface to let students enter a response.
In the case of a radio button response, it will turn into radio buttons (one for each foil),
and a single choice is possible.
To remove a foil, move the cursor over it, and click on the red X.
To move a foil, drag-and-drop the foil's grip icon (to the left of the foil).
This simplified user interface to create radio button responses has many limits:
for instance, it is not possible to create two true foils and let LON-CAPA choose one of them randomly to display.
For that, one has to switch to the \textit{advanced} mode with the button on the top of the element block.
The advanced UI is also necessary to force a foil to be at the top or bottom.
It is also necessary to display different hints based on the student choice.
But it could be convenient to start with the simple UI and only switch to advanced to add these options.
The advanced UI reveals the elements inside the response element, and all the attributes,
so that all LON-CAPA features are available.
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