You can do this with create script:

var AttachRecords = CRM.FindRecord("Library","libr_caseid="+CRM.GetContextInfo("cases","case_caseid"));

Caption +="Number of attachments: ";

Caption +=""+AttachRecords.RecordCount+"";

The only thing with this is, it is all contained in the caption, so it may look better in the top content as opposed to the summary.

Brad

It needs a little bit of code.

You can count the number of library records associated with a case.

This can be either done server side using a create script. See: community.sagecrm.com/.../how-do-i-put-calculated-or-derived-info-in-a-screen-s-top-content.aspx

Or done using a client side code.

See this article about Ajax and SData. community.sagecrm.com/.../sage-crm-7-2-creating-ajax-calls-using-the-client-side-api.aspx