Settings in Layouts
In Layouts , the Change type action should be made available for the user-defined business objects concerned.
Procedure
1. Go to Layouts .
2. Select the appropriate layout and set its status to Under construction.
3. Check if the Change type action is already available on the layout. If not, add it.
The Change type action will now be available for the end user working with this layout.
* 
For more information, refer to the Layouts part of the user documentation.