Condition to allow only the users who are in at least one selected project role(s)
To add User Has Any Project Role(s) condition, go to the transition of your workflow, switch to Conditions tab and click on Add Condition button.
Select JEP - User Has Any Project Role and click Add button
Select project role(s) which you want to give access for the transition and click Add button.
If users have at least one of the project roles selected, they will have access to do the transition so the button will be visible for them.
That's it, the condition is added to the transition. Please do not forget to publish the workflow.