Question:

How to change the display order of the listed detailed products during Call creation within the Detailed Groups?

Answer:

To change the order of the products, edit the Display Order field in the Product Catalog. For example:

1. The default order is alphabetical from left to right within the Detailed Group.
   
   
   
   
2. Edit the two Product Catalog records, in order to change their order. 
   Example: Set 1 for Test 2 and set 2 for Test 1.
   
   
   
   
3. Schedule a new call to verify the new display order.
   
   

Related Documentation:

CRM Online Help: Detailing a Product in a Call