Yes. Have you tried the Shape Tracing tool, to find what are the available alternates for that shape (http://docs.orchardproject.net/Documentation/Customizing-Orchard-using-Designer-Helper-Tools)? You can also take a look at http://docs.orchardproject.net/Documentation/Alternates - Parts_Tags_ShowTags is used as example to explain alternates.
Edit:
I managed to increase the number of available alternates (that are available without the need to explicitly designate them in the placement.info file) following this tip: http://kobowi.co.uk/blog/2012/11/content-display-type-alternates-for-content-parts-in-orchard
In my own module I placed this "PartContentTypeAlternateFactory.cs":
using Orchard.DisplayManagement.Implementation;
using System;
namespace MyModule.Name {
public class PartContentTypeAlternateFactory : ShapeDisplayEvents {
public override void Displaying(ShapeDisplayingContext context) {
context.ShapeMetadata.OnDisplaying(displayedContext => {
var shapeType = displayedContext.ShapeMetadata.Type;
var contentItem = displayedContext.Shape.ContentItem;
if (contentItem == null) return;
var displayType = displayedContext.ShapeMetadata.DisplayType;
var contentType = contentItem.ContentType;
// add a couple more alternates
displayedContext.ShapeMetadata.Alternates.Add(
String.Format("{0}__{1}", shapeType, displayType));
displayedContext.ShapeMetadata.Alternates.Add(
String.Format("{0}__{1}__{2}", shapeType, (string)contentType, displayType));
});
}
}
}
This gives me a few more alternates to chose from, "out of the box". They even show up in the Shape Tracing tool, and one can use it to create the appropriate cshtml files.