Track Humanoids

I found a script at Blizzard US forums but I had to figure out the number for humanoids because it didnt match humanoids anymore, humanoids are 8. The script toggles Track Humanoids on and off easily with a click.
/run local _,_,active=GetTrackingInfo(9) if (active) then SetTracking(9,false) print("Tracking Disabled") else SetTracking(9,true) print("Tracking Enabled") end
The icon is among the priest spells in icon library.

Edit: I discovered the code also enabled battlepet tracking so I reworked it to only track humanoids.
Updated for Legion 7.3.5 since tracking library change again to No.9.

Here's an updated Track Humanoid Macro for Dragonflight Release (based on purenrgy's previous macro)
/run for i=1,C_Minimap.GetNumTrackingTypes() do local x,_,y=C_Minimap.GetTrackingInfo(i) if x==GetSpellInfo(19883) then C_Minimap.SetTracking(i, not y) z='OFF' if not y then z='ON' end DEFAULT_CHAT_FRAME:AddMessage("| Track Humanoids |---> "..z) end end

While it should be common sense, this does not show you the location of Druids in Bear, Cat, Travel, Aqua, Flight and (I believe,) Tree of Life forms, Shaman in Ghost Wolf, Warlocks who have Metamorphed and Death Knights under the Lichborne buff.

It WILL, however, show you the location of Friendly/Enemy Forsaken players, as they count as Humanoid for game balance reasons.