This is the Use this URL in Eclipse to install BPMN 1.4 Update Site for BPMN.
To install from this site, start up Eclipse oxygen, then do: Help > Install New Software... > Copy this site's URL into Eclipse, and hit Enter. When the site loads, select the features to install, or click the Select All button. To properly resolve all dependencies, check [x] Contact all update sites during install to find required software Click Next, agree to the license terms, and install.
Help > Install New Software... >
Select All
[x] Contact all update sites during install to find required software
Next
You can check here the web site documentation.
We'd greatly appreciate the assistance in testing and reporting of issues in our issue tracker.
The bleeding edge contains the latest and greatest new features, but nothing is stable or guaranteed - yet. If you're using a Milestone and need a fix, you can update to the latest Nightly, or wait for the next Milestone.