Locked Objects when i try to copy elements from one folder to another

Hi,

Could anyone help me to resolve a lock problem in the portal-content studio? I try to copy elements (iviews or pages) from one package(folder) to another and the objects have been locked.

How can I set another lock time different from the system time (36 000sek.)?

and how should I copy this files/elements to avoid this locking situation?

thx in advance