how can take screen prints of mouse clicks and only of active window

The mouse is not included with a printscreen. A window alone can be captured using ALT+PRTSCN.
But if you want some kind of instructional video, try Jing (free!) to record a video (either full screen, just a window, or even a block you select yourself, includes mouse pointer, optionally records your voice during the recording)

https://www.techsmith.com/jing.html

I am looking for auto screen print with the above mentioned features. just like what psr does but only for  active window

As I said,  ALT+PRTSCN

I am in a training team and when i explain the processes to the employees i need to take screen print of each of the activity to create SOP (standard operating procedure).
I am looking at a solution where it automatically takes the screen print of the window where i click the mouse.. for example if i am using notepad it have to take screenprint of it.
PSR is a inbuilt app in windows.. however there are few limitations like it take screen print of entire scree and limits to only 99 screen prints

Hi Mike. thank you Yeah i understand it might be a complex project. initially i though this should be easy..however as i was going through seems like its not going to be easy.. will check if i can do something with autohotkey