Eclipse is probably best known as a Java IDE, but it is more: it is an IDE framework, a tools framework, an open source project, a community, an eco-system, and a foundation.https://www.eclipse.org/eclipse.org-common/themes/solstice/public/images/logo/eclipse-200x200.png
Support for the BPMN2 Modeler is provided by the community on a volunteer basis. Use the following mechanisms to reach that community.
Ask questions on the Eclipse Community Forum.
Send an email to the BPMN2 Modeler Developer mailing list.
Report defects and ask for enhancements in Bugzilla.