Key mapping settings for firing mode.

[Adelphos]

I am trying to switch "T" for team speaker to "B" for firing mode but every time I do this I always get error. I have reset the key map settings, and also the tencent gaming buddy, but nothing works. I just want to switch them T to B or B to T. I even removed the default Keymapping on the UI location, still doesn't work. Tried deleteing T and B and then doing a fresh start but nothing happens.