Grub2/EFI keep displayed logging options longer

edit

Hi,

I am using dual boot (Fedora 28 and Win 7). When I want to boot into Fedora, I choose the partition to boot from (F11 on power-up) and then the kernels are displayed in grub's list for a split second. This means that the first (latest) option is always chosen. Sometimes I want to boot to an older kernel, but the options disappear too quickly. A use case for this is when my NVIDIA drivers are crashing after a new kernel has been applied.

So, I need to go to the old kernel, run:

sudo systemctl set-default multi-user.target
.. reboot into the latest kernel version, install the latest Nvidia drivers
sudo systemctl set-default graphical.target
reboot

After this all is good. However, due to the quickness of grub I need to reboot a few times so that I can press the down key once so that I choose the previous kernel version.

So, if there is a quick option to increase the time the list is displayed it would be great.

Thank you.

P.S. Many years ago, in Ubuntu, I did play around with Grub and it's options... but it just seems like it was ages ago :)

Edit: I've tried the method suggested by fcomida, but it still goes through the options instantly. I've change the value of GRUB_TIMEOUT from 5 to 5000. This value is updated in /etc/grub2-efi.cfg:

terminal_output console
if [ x$feature_timeout_style = xy ] ; then
  set timeout_style=menu
  set timeout=5000
# Fallback normal timeout code in case the timeout_style feature is
# unavailable.
else
  set timeout=5000
fi

but still, the behaviour is the same.

P.P.S. I already have dkms installed, and my Nvidia drivers get compiled automatically after every kernel update. Unfortunately sometimes the recompilation fails, and this means that I need a newer version of the driver for this particular kernel. The crash doesn't happen every time the kernel is updated. Just from time to time :) Every second, or third kernel update :)