Building Raspberry Fully functional GUI using PyQt5 and program GPIOs

i need to design a unique GUI for an elevator
this GUI has three pages
first
is about configuration
like no of floors and its names
second
GUI with buttons open/close/stop door of the elevator
GUI like in that link:

https://www.pinterest.com/pin/464152305327716871/

third page
will have login info
username and password
period doesn't matter
take your time
but you have to use teamviewer to test on my own raspi
i have raspi 3 & 4