Why i'm not able to change the "pour absence" workflow in calendar view (screenshot attached), but it is possible to do it by the "absence regelementee" window.
I precise i'm both RH admin & RH manager of the employee.

I don't understand this point

Moreover, i never received any notification by email even if setup (screenshot attached)

Yes, contributor you developped this module never had this to the end.
This was planned but never done.

Please find attached screenshot showing that i'm not able to change WF (submission) from the calendar view. Is it only possible from "absences reglementees" screen?
Because i mask this screen to my user as calendar view is more userfriendly

If is possible for manager who can manage absences, and on dedicated screen.

Sorry, I do not understand..
First step is that employee push an absence request to "SOUMIS" i'm right? So how to proceed for them from calendar view ?
Next step is that manager has to approve or refuse that request, but where to do it from without using unfriendly window "absence reglementée?

Hope to be clear that time 🙂

Yes, and this is exactly what is possible with default configuration