not every program will have a help option in a gui
and even if there is a "help" option in the toolbar there might NOT be a file for it to read
most things in the *nix world tend to use the terminal
GUI's are a after thought or not even used
there are many programs i use daily that do not use a gui
for red hat
seeing as you did buy the required license ( red hat is not free)
you have access to the red hat support that you bought
one place is the red hat knowledge base
log in to the red hat web site with the username and pass you set up with the license
and search a key work or topic
https://access.redhat.com/knowledge/search
the documentation is free for EVERYONE to read
https://access.redhat.com/knowledge/...erprise_Linux/
or there is the wiki for a DIFFERENT Operating System
CentOS -- a FREE rebuild of RHEL
http://wiki.centos.org/
but not everything for cent can be 100% used on RHEL. --- 95 to 98% can ----