Hi @Brivium , When i add more that one prefix to my thread, that prefix changes. (let me explain) I have 3 prefixes created: "a", "b" and "c" i create a threat with prefix "a" . Later i want to add another existing prefix. In this example i add prefix "b". So normally MyThread with prefix "a" now has prefix "ab", not prefixes "a" and "b" . Also, if a start a new thread and add more that one prefix, that will put togheter, not separatelly. I hope you understand my problem and my english is not very well. thank you in advance and cheers!