Hello, I'm new to EpiServer so forgive me if this is a very silly question.

I've created a simple test usercontrol following some tutorials I've found on the internet (for example: this) but I'm not able to add it to a page.

My simple user control:

ASCX:

<%@ control language="C#" autoeventwireup="true" codebehind="TestUserControl.ascx.cs" inherits="EPiServerSite1.UserControls.TestUserControl" %>

Hello World! - Test User Control

Code behind:

using EPiServer;
using EPiServer.DynamicContent;

namespace EPiServerSite1.UserControls
{
    [DynamicContentPlugIn(
        DisplayName = "TestUserControl",
        Description = "Test UserControl",
        ViewUrl = "~/UserControls/TestUserControl.ascx")]
    public partial class TestUserControl : UserControlBase
    {
        protected void Page_Load(object sender, EventArgs e)
        {

        }
    }
}

Now I would like to add this to a page but I can't find a way to do it. I've tried editing existing content (I'm working with the Alloy demo site) but the XHTML sections don't have any "add dynamic content" button as I've seen in the tutorials. I've created new blocks with XHTML properties but still no luck.

In the tutorials I see this:

but in my site I see this:

What I'm missing?

Thanks in advance.

Martin