Hi,

Maybe you can prepare a custom validator like:

public class CustomPageValidator : IValidate<MyPageType>
{
   IEnumerable<ValidationError> IValidate<MyPageType>.Validate(MyPageType page)
   {
      bool blocksValidationCondition = .... validation condition ....
	  if (!blocksValidationCondition)
      {
         return new[] 
         { 
            new ValidationError() 
            { 
               ErrorMessage = "Cannot publish page", 
               PropertyName = page.GetPropertyName(pg => pg.IntroText),
               Severity = ValidationErrorSeverity.Warning, 
               ValidationType = ValidationErrorType.AttributeMatched
            } 
         };
      }		

      return Enumerable.Empty<ValidationError>();
   }
}