Cycle Windows on Dock:
gsettings set org.gnome.shell.extensions.dash-to-dock scroll-action 'cycle-windows'
gsettings set org.gnome.shell.extensions.dash-to-dock click-action 'cycle-windows'
Extensions:
Vitals: https://extensions.gnome.org/extension/1460/vitals/
Audio Selector: https://extensions.gnome.org/extension/5135/audio-selector/
Dash to Dock: https://extensions.gnome.org/extension/307/dash-to-dock/