The default Ubuntu 18.04
Dash-to-dock dock allows a thumbnail preview of open windows for an application. You initiate this by hovering over the application and clicking once on it. There's no point requiring a click, and I'd rather the sequence initiate simply by hovering over the program (something Windows 7/10 actually gets right).
This is already offered by
Dash-to-panel as demonstrated here. But
Dash-to-panel can't be placed on the left side of the screen where I need it. Only options for
Dash-to-panel are bottom or top of screen.
How do I turn on this
Dash-to-dock hover preview that I want?