Is concurrent import of ReqIF/migiz files possible?

If yes, up to how many import actions can be maintained at the same time?

At which level is the import limited to one at a time?:

- the server: several concurrent imports per RDNG server (e.g. import into several project areas simultaneously);

- the project area: several concurrent imports per project area (e.g. import into several streams - each one of a different component - simultaneously);

- the component: several concurrent imports to different streams of the same component;

A first test on a JTS installation on a laptop showed that the DNG server cannot import more than one migiz or reqif file at a time. Before I can arrange a test in our lab and wait for 2 weeks for an answer, maybe someone can answer this in here.

Thank you very much in advance!