CSA task, locking if two users try to update same time

Hi Folks,

we want to use Solution manager CSA list for all technical and functional checks, this will help us to log all checks for reporting purpose, we have some issue in CSA, when two users would like to update CSA task simultaneously, like Basis and functional team, CSA won't let us to do that, as it will ask task list is locked by other user

Do we have some way where we can achieve this goal, where two users can update CSA simultaneously ?,

Please help and let us know

Thanks

Dinesh