Actually; pumping grease into the hole that the clutch cable stanchion threads into, (The pic with the tool), does absolutely nothing to lube the parts that need it!
Centrifugal force will sling the grease outward, and you will have nothing but a well greased inner case.
Remove the clutch actuator and the pin...don't worry about removing the 8mm ball...if it falls out fine, but it isn't necessary to remove it.
Using a grease gun, slowly, pump 4 shots into the hole that the clutch pin goes into. Hold the grease gun firmly against the countershaft so that the grease goes in. This will lube the sliding parts that make up the countershaft. From inside out centrifugal force will sling the grease where it is needed.
As Norman said, grease the actuator cam...and put a little on the primary gearset.
Jim