public class AIReportPromptCollection :
    List<AIReportPrompt>

Public Class AIReportPromptCollection
    Inherits List(Of AIReportPrompt)

using DevExpress.AIIntegration.WinForms.Reporting;
// ...
public partial class Form1 : Form {
    public Form1() {
        InitializeComponent();
        behaviorManager1.Attach<ReportPromptToReportBehavior>(reportDesigner1, behavior => {
          var collection = AIReportPromptCollection.GetDefaultReportPrompts();
          collection[0].Text = "your custom text";
          behavior.Properties.PredefinedPrompts = collection;
        });
    }
}

Imports DevExpress.AIIntegration.WinForms.Reporting
' ...
Partial Public Class Form1
  Inherits Form

  Public Sub New()
    InitializeComponent()
    behaviorManager1.Attach(Of ReportPromptToReportBehavior)(reportDesigner1, Sub(behavior)
      Dim collection = AIReportPromptCollection.GetDefaultReportPrompts()
      collection(0).Text = "your custom text"
      behavior.Properties.PredefinedPrompts = collection
    End Sub)
  End Sub
End Class

using DevExpress.AIIntegration.Wpf.Reporting;
using DevExpress.Mvvm.UI.Interactivity;

public partial class MainWindow : Window {
    public MainWindow() {
        InitializeComponent();
        ReportPromptToReportBehavior reportBehavior = new ReportPromptToReportBehavior();
        var collection = AIReportPromptCollection.GetDefaultReportPrompts();
        collection[0].Title = "My Changed Prompt";
        reportBehavior.PredefinedPrompts = collection;
        Interaction.GetBehaviors(designer).Add(reportBehavior);
    }
}

Imports DevExpress.AIIntegration.Wpf.Reporting
Imports DevExpress.Mvvm.UI.Interactivity

Partial Public Class MainWindow
    Inherits Window

    Public Sub New()
        InitializeComponent()
        Dim reportBehavior As New ReportPromptToReportBehavior()
        Dim collection = AIReportPromptCollection.GetDefaultReportPrompts()
        collection(0).Title = "My Changed Prompt"
        reportBehavior.PredefinedPrompts = collection
        Interaction.GetBehaviors(designer).Add(reportBehavior)
    End Sub
End Class

using DevExpress.AIIntegration.WinForms.Reporting;
// ...
public partial class Form1 : Form {
    public Form1() {
        behaviorManager1.Attach<ReportPromptToReportBehavior>(reportDesigner1, behavior => {
            // Obtain built-in DevExpress prompts from the collection.
            var collection = AIReportPromptCollection.GetDefaultReportPrompts();
            // Create a custom prompt.
            AIReportPrompt customPrompt = new AIReportPrompt();
            customPrompt.Title = "Custom Prompt";
            customPrompt.Text = Prompts.CustomAIReportPrompt;
            // Add this prompt to the collection.
            collection.Add(customPrompt);
            // Display Prompts in the Report Wizard.
            behavior.Properties.PredefinedPrompts = collection;
        });
    }
    public static class Prompts {
        public const string CustomAIReportPrompt = "Create Sample Report:\r\n \r\nPage Setup:\r\n- Paper Size: A4\r\n- Report Margins:\r\n - Top & Bottom: 40\r\n - Left & Right: 60\r\n\r\nReport Header:\r\n- Title: Sample Report\r\n- Alignment: Center\r\n- Font: Comic Sans MS, 12pt, Bold\r\n\r\nCreate a horizontal table with the four column headers that correspond to fields in the bound data source.\r\n\r\nFont for column headers: Comic Sans MS, 12pt, Bold\r\n \r\nDetail Section:\r\nBind data cells to the fields corresponding to the column headers defined in the Group Header\r\nFont for data cells: Comic Sans MS, 12pt, Bold\r\n \r\nSummary Section:\r\nInclude calculated values for bound fields.\r\nSummary type: [Sum]\r\nFont for summary values: Comic Sans MS, 12pt, Bold";
    // ...
    }
}

Imports DevExpress.AIIntegration.WinForms.Reporting
' ...
Partial Public Class Form1
    Inherits Form

    Public Sub New()
        behaviorManager1.Attach(Of ReportPromptToReportBehavior)(reportDesigner1, Sub(behavior)
            ' Obtain built-in DevExpress prompts from the collection.
            Dim collection = AIReportPromptCollection.GetDefaultReportPrompts()
            ' Create a custom prompt.
            Dim customPrompt As New AIReportPrompt()
            customPrompt.Title = "Custom Prompt"
            customPrompt.Text = Prompts.CustomAIReportPrompt
            ' Add this prompt to the collection.
            collection.Add(customPrompt)
            ' Display Prompts in the Report Wizard.
            behavior.Properties.PredefinedPrompts = collection
        End Sub)
    End Sub
    Public Module Prompts
        Public Const CustomAIReportPrompt As String = "Create Sample Report:" & vbCrLf & " " & vbCrLf & "Page Setup:" & vbCrLf & "- Paper Size: A4" & vbCrLf & "- Report Margins:" & vbCrLf & " - Top & Bottom: 40" & vbCrLf & " - Left & Right: 60" & vbCrLf & vbCrLf & "Report Header:" & vbCrLf & "- Title: Sample Report" & vbCrLf & "- Alignment: Center" & vbCrLf & "- Font: Comic Sans MS, 12pt, Bold" & vbCrLf & vbCrLf & "Create a horizontal table with the four column headers that correspond to fields in the bound data source." & vbCrLf & vbCrLf & "Font for column headers: Comic Sans MS, 12pt, Bold" & vbCrLf & " " & vbCrLf & "Detail Section:" & vbCrLf & "Bind data cells to the fields corresponding to the column headers defined in the Group Header" & vbCrLf & "Font for data cells: Comic Sans MS, 12pt, Bold" & vbCrLf & " " & vbCrLf & "Summary Section:" & vbCrLf & "Include calculated values for bound fields." & vbCrLf & "Summary type: [Sum]" & vbCrLf & "Font for summary values: Comic Sans MS, 12pt, Bold"
    ' ...
    End Module
End Class

xmlns:dxrud="http://schemas.devexpress.com/winfx/2008/xaml/reports/userdesigner" 
xmlns:dxai="http://schemas.devexpress.com/winfx/2008/xaml/ai" 
xmlns:dxmvvm="http://schemas.devexpress.com/winfx/2008/xaml/mvvm"  
xmlns:reporting="clr-namespace:DevExpress.AIIntegration.Reporting;assembly=DevExpress.AIIntegration.Reporting.Common.v25.2"
... 
<dxrud:ReportDesigner x:Name="designer">
    <dxmvvm:Interaction.Behaviors>
        <dxai:ReportPromptToReportBehavior FixLayoutErrors="true">
        <dxai:ReportPromptToReportBehavior.PredefinedPrompts>
            <reporting:AIReportPrompt Title="Custom Prompt" Text="{x:Static local:Prompts.CustomAIReportPrompt}" />
        </dxai:ReportPromptToReportBehavior.PredefinedPrompts>
        </dxai:ReportPromptToReportBehavior>
    </dxmvvm:Interaction.Behaviors>
</dxrud:ReportDesigner>

using DevExpress.AIIntegration.Wpf.Reporting;
using DevExpress.Mvvm.UI.Interactivity;
using DevExpress.AIIntegration.Reporting;

public partial class MainWindow : Window {
    public MainWindow() {
        InitializeComponent();
        ReportPromptToReportBehavior reportBehavior = new ReportPromptToReportBehavior();
        reportBehavior.FixLayoutErrors = true;
        // Obtain built-in DevExpress prompts from the collection.
        var collection = AIReportPromptCollection.GetDefaultReportPrompts();
        // Create a custom prompt.
        AIReportPrompt customPrompt = new AIReportPrompt();
        customPrompt.Title = "Custom Prompt";
        customPrompt.Text = Prompts.CustomAIReportPrompt;
        // Add this prompt to the collection.
        collection.Add(customPrompt);
        // Display Prompts in the Report Wizard.
        reportBehavior.PredefinedPrompts = collection;
        Interaction.GetBehaviors(designer).Add(reportBehavior);
    }
    public static class Prompts {
        public const string CustomAIReportPrompt = "Create Sample Report:\r\n \r\nPage Setup:\r\n- Paper Size: A4\r\n- Report Margins:\r\n - Top & Bottom: 40\r\n - Left & Right: 60\r\n\r\nReport Header:\r\n- Title: Sample Report\r\n- Alignment: Center\r\n- Font: Comic Sans MS, 12pt, Bold\r\n\r\nCreate a horizontal table with the four column headers that correspond to fields in the bound data source.\r\n\r\nFont for column headers: Comic Sans MS, 12pt, Bold\r\n \r\nDetail Section:\r\nBind data cells to the fields corresponding to the column headers defined in the Group Header\r\nFont for data cells: Comic Sans MS, 12pt, Bold\r\n \r\nSummary Section:\r\nInclude calculated values for bound fields.\r\nSummary type: [Sum]\r\nFont for summary values: Comic Sans MS, 12pt, Bold";
    // ...
    }
}

Imports DevExpress.AIIntegration.Wpf.Reporting
Imports DevExpress.Mvvm.UI.Interactivity
Imports DevExpress.AIIntegration.Reporting

Partial Public Class MainWindow
  Inherits Window

  Public Sub New()
    InitializeComponent()
    Dim reportBehavior As New ReportPromptToReportBehavior()
    reportBehavior.FixLayoutErrors = True
    ' Obtain built-in DevExpress prompts from the collection.
    Dim collection = AIReportPromptCollection.GetDefaultReportPrompts()
    ' Create a custom prompt.
    Dim customPrompt As New AIReportPrompt()
    customPrompt.Title = "Custom Prompt"
    customPrompt.Text = Prompts.CustomAIReportPrompt
    ' Add this prompt to the collection.
    collection.Add(customPrompt)
    ' Display Prompts in the Report Wizard.
    reportBehavior.PredefinedPrompts = collection
    Interaction.GetBehaviors(designer).Add(reportBehavior)
  End Sub
  Public NotInheritable Class Prompts

    Private Sub New()
    End Sub

    Public Const CustomAIReportPrompt As String = "Create Sample Report:" & vbCrLf & " " & vbCrLf & "Page Setup:" & vbCrLf & "- Paper Size: A4" & vbCrLf & "- Report Margins:" & vbCrLf & " - Top & Bottom: 40" & vbCrLf & " - Left & Right: 60" & vbCrLf & vbCrLf & "Report Header:" & vbCrLf & "- Title: Sample Report" & vbCrLf & "- Alignment: Center" & vbCrLf & "- Font: Comic Sans MS, 12pt, Bold" & vbCrLf & vbCrLf & "Create a horizontal table with the four column headers that correspond to fields in the bound data source." & vbCrLf & vbCrLf & "Font for column headers: Comic Sans MS, 12pt, Bold" & vbCrLf & " " & vbCrLf & "Detail Section:" & vbCrLf & "Bind data cells to the fields corresponding to the column headers defined in the Group Header" & vbCrLf & "Font for data cells: Comic Sans MS, 12pt, Bold" & vbCrLf & " " & vbCrLf & "Summary Section:" & vbCrLf & "Include calculated values for bound fields." & vbCrLf & "Summary type: [Sum]" & vbCrLf & "Font for summary values: Comic Sans MS, 12pt, Bold"
  ' ...
  End Class
End Class