...make "Steps to reproduce" mandatory?

This feature is not implemented as a build-in feature, because a typical user would prefer to close/terminate your app rather than type anything in. Especially if you try to force him. Result: you will get less reports. That is probably not what you want?

If you absolutely need to understand what user was doing prior to exception - it is way better to use logging instead. You can use EurekaLog's logging or any 3rd party framework. For example, if you want to use EurekaLog's logging - you can start by placing this code into your functions:

uses
  ELogging,   // for ELogEnter
  EDebugInfo; // for __UNIT__ and __FUNCTION__
 
procedure TForm1.Button1Click(Sender: TObject);
begin
  ELogEnter(__UNIT__ + '.' + __FUNCTION__).C;
 
  // Your actual code goes here...
end;

Anyway, if you still want to make "steps to reproduce" field mandatory - you can do this by altering behavior of exception dialog class, so it won't allow empty "steps to reproduce" field. For example:

uses
  EDialog,                // for RegisterDialogClassFirst
  EDialogWinAPIMSClassic, // for TMSClassicDialog
  EModules;               // for CurrentEurekaLogOptions
 
type
  TMSClassicDialog = class(EDialogWinAPIMSClassic.TMSClassicDialog)
  protected
    function AssignOnCloseData: Boolean; override;
  end;
 
function TMSClassicDialog.AssignOnCloseData: Boolean;
begin
  // Call inherited implementation to fill reproduce text from dialog
  // (and other actions)
  Result := inherited AssignOnCloseData;
 
  // Block dialog closing when no reproduce steps are present
  if Trim(ReproduceText) = '' then
  begin
    MessageBox('Please, describe what you were doing', 

      'Not enough information', MB_OK or MB_ICONWARNING);
    Result := False;
  end;
end;
 
initialization
  // Replace build-in dialog with our customizations
  RegisterDialogClassFirst(TMSClassicDialog);

 
  // Additionally, change dialog text to indicate that the field is required
  CurrentEurekaLogOptions.CustomizedTexts[mtMSDialog_HowToReproduceCaption] :=
    'What were you doing when the problem happened (mandatory)?';
end.

See also: