What is the equivalent for /etc/gdm in KDE?

Hi,

I am using RH 7.6 with KDE Desktop.

I would like to find out what is the equivalent for /etc/gdm in KDE?

In /etc/gdm folder, it has:

drwxr-xr-x.   2 root root  4096 Aug  5 13:25 Init
drwxr-xr-x.   2 root root  4096 Aug  5 13:25 PostLogin
drwxr-xr-x.   2 root root  4096 Aug  5 13:25 PostSession
drwxr-xr-x.   2 root root  4096 Aug  5 13:25 PreSession
-rw-r--r--.   1 root root  2002 Nov 28  2018 custom.conf
-rw-r--r--.   1 root root  2231 Nov 28  2018 gdm.conf

I can configure some action/script inside those pre and post folders.

How should I achieve this in KDE?

Thanks,

Zaiwen