Multiple user access problem in Community Edition

Hi,

I am using pentaho 4.2.0 community edition in linux environment.

I came to know that in CE, Only one user can edit&save job/transformation at a time,

If multiple users are working on the same repository, while saving job or transformation its getting locked and waiting for releasing lock until the other user logouts from repository.

Can any one help me on this to access multiple users at a time in CE.

Thanks,
Siva