Sliders for overrides in gmoccapy

I am using Axis for my lathe currently. I was recently looking at the gmoccapy GUI in sim mode, everything is much better here. But one thing is keeping me off from using it is the sliders for the Rapid/feed/spindle/jog override. In axis, one can just move the sliders from 0 to 100 in half a second, but you have to press the '+' or '-" to adjust them. Are there any shortcuts for this or any way to get adjustable sliders in gmoccapy like axisui? Thanks in advance.

Yes, axis supports 1-0 for feed overrides. Sadly it doesn't work on gmoccapy. I can see in some videos over youtube that there used to be sliders at sometime. As a beginner in CNC the sliders and shortcuts are very very useful for me

Thank you for the detailed walkthrough. I understand now how to set things up. Though it will take sometime.

But before that, when I run lsusb in terminal, it shows me "command not found". I have to run that through less /proc/bus/input/devices .. to see the unique name for my keyboard. After I add the loadusr command to my ini file in the HAL section, the keyboard button still doesn't show up in my HALshow (I am currently trying all of this on axisgui). It only shows up my gamepad. I tried to input the command directly into the HAL file, but it still doesnt show up. Am I doing anything wrong? As I feel 'lsusb' should have shown something in the terminal

There are a lot of things that are working on my laptop linuxcnc install on my relatively new laptop VM but not on my dedicated PC (very old one, even has a parallel port) where I have connected the mesa board. Like, if you click on the clock, an error comes up. Following that after putting sudo apt install usbutils, I get :

arijitdutta@kiko:~$ sudo apt install usbutils[sudo]
password for arijitdutta:
Reading package lists...
DoneBuilding dependency tree...
DoneReading state information...
DonePackage usbutils is not available, but is referred to by another package.This may mean that the package is missing, has been obsoleted, oris only available from another source.
However the following packages replace it:  usb.idsE: Package 'usbutils' has no installation candidate
arijitdutta@kiko:~$ sudo apt install usb.ids
Reading package lists...
DoneBuilding dependency tree...
DoneReading state information...
Doneusb.ids is already the newest version (2024.01.20-0 deb12u1).0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.

Whereas the command works on the VM in my laptop with an identical install process. I don't know what's wrong with my desktop.
Attaching my input devices after 'less /proc/bus/input/devices' in a separate file so that I dont flood it here..

Sadly, it doesnt..