Does Threshold work the other way round?

[Reindero]

At this moment, everything a tester can change, a builder can change as well. I dont want build to be able to close or reopen an issue, but I want the tester to be able to. Only in the workflow I can only give the minimum threshold which mkaes this impossible

Any ideas?

Only thing I can think of right now is renaming the developer to tester and the tester/reporter to developer?