[otrs] Customer Same ID

Hello All, In our system to let all customers see all tickets they all have the same Customer ID. But this feature let them edit other's customers tickets. So does anyone know how to let only RO of other customers tickets and RW for own tickets? I will appreciate any suggestions to solve this issue. -- IMPORTANT NOTICE: This email is confidential, may be legally privileged, and is for the intended recipient only. Access, disclosure, copying, distribution, or reliance on any of it by anyone else is prohibited and may be a criminal offence. Please delete if obtained in error and email confirmation to the sender.