interacting with TPM from within a tmux -CC session

[jhgorse]

Greetings!

I would like to know how to interact with TPM from within a tmux -CC session. The prefix-b (C-b) default does nothing in these iTerm2 windows.

I do see that I can do some things via the tmux commands within the session, e.g. tmux ls.

Also, I see that iTerm2 parent terminal which runs the tmux -CC has a menu which allows running tmux commands (same as from within the session seen above):

$ tmux -CC
** tmux mode started **

Command Menu
----------------------------
esc    Detach cleanly.
  X    Force-quit tmux mode.
  L    Toggle logging.
  C    Run tmux command.

I perused the man page and saw that I might do something like tmux send-keys 'C-b I' but it did not work.

What say you?