A long time ago someone showed me that it's possible to add a hotkey to iTerm2 to open the terminal window from anywhere in the system. Till these days I was using <code class="language-unknown">`</code> key as a hotkey. But when having to input <code class="language-unknown">`</code> in markdown or JS I had to use <code class="language-unknown">Option + ` </code> which has specific behavior.
I decided to try Caps Lock for a while (as Caps Lock is one of the useless keys on the keyboard).
The issue is that iTerm2 does not recognize the Caps Lock press. So I have to remap in MacOS Caps Lock to Control key.
Go to System Preferences > Keyboard:
<ol>
<li>Select Modifier Keys:</li>
</ol>
<img src="/macos-keyboard-mod-keys.png" alt="macos keyboard mod keys">
<ol start="2">
<li>Set Caps Lock as Control key:</li>
</ol>
<img src="/macos-caps-lock-ctrl.png" alt="macos caps lock ctrl">
<ol start="3">
<li>
Go to iTerm, System Preferences > Profiles > Select profile > Keys > Configure Hotkey Window:
<img src="/iterm-add-hotkey.png" alt="iterm add hotkey">
</li>
<li>
Set Double-tap key as Control
</li>
</ol>
<img src="/iterm-ctrl-hotkey.png" alt="iterm ctrl hotkey">
Now when you double press Caps Lock (or Ctrl) the iTerm window will popup.

A guide to remap Caps Lock to open the iTerm2 Mac terminal from anywhere in the system.

Use Caps Lock to trigger iTerm2 terminal