Grind mode will grind mobs/fates in the map you are on based on the settings you are using, it won't switch maps unless you are using a profile so keep that in mind.
Do Hunting Log: Will kill mobs for the selected hunting log on the map you are grinding on, could be used with other options like “do fates”.
Do Atma: Will do Atma fates.
Do luminous: Will get luminous.
Do Fates: Will do the fates in the map you are on depending on the settings/tweaks you use.
Fates only: Will ignore everything else and will do ONLY fates in the map you are on depending on the settings/tweaks you use.
Kill Non-Fate Aggro: Will kill the aggro on you that is not fate related for example the aggro you got while moving from fate to fate.
Rest in fate: Will rest in fates till the hp/mp% you set reached before going to the next fate.
Min/Max fate level: Will ignore fates above/below character level.
No Min/Max: Will do ALL fates in the map.
Teleport%: Will teleport to the next fate once the % you set is reached. *NOT RECOMMENDED*
Wait near Evac: Will wait near evac point before going to the next fate.
Min/max random delay: Will wait random amount of settings between the 2 values you input before going to the next fate.