The Tbc Arena plug-in can display the reading bar, just use related plug-ins, and the arena assistant inside has this function, and many plug-ins have arena assistants.

Plug-ins (also called addin, add-in, addon or add-on) are programs written according to certain standard application program interfaces.

It can only run under the system platform specified by the program (possibly supporting multiple platforms at the same time), and cannot run independently without the specified platform.