Description of problem:
It is not possible to drag a "Workflow Pattern" from the menu and drop it inside a swimlane (wp_insideSwimlane.png). First, you will have to drop it outside the swimlane (wp_outsideSwimlane.png), select all again and then drag and drop it inside the swimlane.

Version-Release number of selected component (if applicable):
BPM Suite 6.1.0

How reproducible:
Always

Steps to Reproduce:
1. Create a simple process with a swimlane;
2. Try to drag and drop a "Simple Merge" Workflow Pattern from menu inside the swimlane.

Actual results:
It will not allow to drop the Simple Merge inside the swimlane (see wp_insideSwimlane.png).

Expected results:
It should allow to drop the workflow inside the swimlane as it is possible for any other component (i.e. tasks, gateways, etc).

Additional info:
Workaround is drop it outside and then drag it inside the swimlane.