You need other addons for that. I personally use:
Target HP estimation: MobInfo2 https://github.com/kc8pnd/MobInfo2
Target debuff timers: DebuffTimers https://forum.elysium-project.org/topic/25081-addon-debufftimers/
Target cooldowns: cdframes https://github.com/shirsig/cdframes
If you had it installed in "C:\Program Files x86\" then your WDB etc folders will be located in "C:\Users\USERNAME\AppData\Local\VirtualStore\Program Files (x86)\World of Warcraft\World of Warcraft 1.12\"
+1 to all three suggestions.
To request even more, would it be possible to move (and resize) the spell icon inside the bar, next to spell text instead? Like so:
Thanks!