We have an issue with Essbase cube copy in EAS (essbase and eas are in version188.8.131.52) . When we copy a cube we expect the access for the users and groups to be also available in the copied cube ie say groupA is assigned read access to cube1 but if we copy cube1 to cube2 we cannot see that groupA is also assigned read access to cube2 . This issue did not happpen in System 9 and this is major issue for us since we rely on the process of taking snapshot of the cube monthly basis and losing the secuirty of the cube when copying is not acceptable
Are you copying it within the server / across server?
I am not much familiar with LCM but if you are using it may be I guess you can do it from there.
If LCM cannot hep you, you can achieve it using Maxl as Sh!va said . Take an export of the security, parse it using BATCH (Windows) / SHELL SCRIPT (UNIX) and update the security again (Export will serve as security backup too ).
We had an application way back in v6.5.7 and we did the same way.