为什么没法加入公共项目啊_why can't i join a public project?

[wheezywop]

想加入MQL5BOOK，但右键之后加入（join）是灰色的

已激活MQL5 ALGO FORGE

I want to join MQL5BOOK, but the 'join' option after right clicking is grayed out

already Activated MQL5 ALGO FORGE

[zhui168]

这是什么东西