ZSH iterm2 increase number of lines history

Question

Not sure if this is zsh, iterm2 or the interaction between them. Trying to change the number of recallable lines in the terminal - not the command history, the output history.

Answer 1

With zsh and iTerm2 Build 3.2.5, an additional step is required: Preferences->Profiles->terminal->check UnlimitedScrollback->Check save lines to scrollback when an app status bar is present

Scrolling was breaking for me without the last one.