Changing Task Label Placement
By default, Designer places a label for tasks, call activity, and collapsed subprocess steps beneath the step (this is the existing webMethods style). Designer also supports the BPMN style of label placement, with the label on the task, call activity, and collapsed subprocess step. This behavior does not apply to event, gateway, and subprocess steps.
To change the task, call activity, and collapsed subprocess label placement
1. You can set the default behavior for label placement with the Default step label location preference by specifying either of the following:
On step. Click this setting to display labels on top of task and call activity steps.
Below step. Click this setting to display labels below task and call activity steps.
2. To change the label placement for tasks, call activities, and collapsed subprocess in a process open in the process editor, click the Step Label Position button 
on the tool bar. 3. Save the process.