How can I restrict some users to see in jbpm-console some processes?
User 1 can see only process 1 and 2
User 2 can see process 2
User 2 can see process 3
Admin can see process 1,2 and 3
Now I configure users and groups in db but I can't see how can I specify relation between user and process.
you can't in the webconsole. Since it is not realy end-user intended (yet?) those kinds of details are not fully implemented. Most people built their own ui's and implement those things there.