Signal "ID" should be renamed in the eclipse BPMN designer in the same way as web designer

Description of problem:
Signal "ID" should be renamed in the eclipse BPMN designer in the same way as web designer. The user can not set a meaningful signal ID.

Version-Release number of selected component (if applicable):
JBPM 6.0.2
JBDS 7.1.1

How reproducible:
Create Signal in the eclipse BPMN designer

Steps to Reproduce:
1. Create Signal in the eclipse BPMN designer
2. We can not change the Signal ID

Actual results:
set a meaningless id like a Signal_1(Signal_2, _3 ..)

Expected results:
We can change the Signal ID.
Or
If we set the Signal Name, the same value is set in the Signal ID in the same way as web designer.

Additional info: