Need to know,
Is there any app, which gives a keyboard shortcut Or any inbuilt keyboard shortcut to cascade windows(attached pic for reference) of same in application in macOs
Note that I'm not asking about Expose shortcut
Apparently if you hold the "Option" key wile selecting "Arrange In Front" from the Window menu of your application, that should do what you want. To make a shortcut for that, you should be able to add a shortcut in the keyboard preferences.
You might also look into Better Touch Tool
I use Application windows
shortcut for this. It's the same as App Axpose
gesture on a trackpad that expose not all windows but only windows of current application.
After windows is exposed, you can choose particular window by ← ↑ ↓ →
keys.