Secrets in Forest Trench

Secret - Force Essence
Force Essences in Forest Trench

Force Essence
Force Echoes in Forest Trench - Databank
Insurgent Activity (8)

1. Saw's Ambush
This trooper was ruthlessly killed by Saw Gerrera. Remind me not to get on his bad side.
Imperial Occupation (11)

9. Patrol Station
This station was abandoned. Imperial patrols used it as a checkpoint. It must have been overrun at some point by dangerous animals in the area.
Tactical Guide Updates in Forest Trench
Kashyyyk (7)

Wyyyschokk
Attack from behind while creature is distracted by other prey. Parry its lunge attack to quickly strike it down.
Wyyyschokks are highly intelligent, multi-legged predators. They are found to be extremely aggressive to most sentient life forms, and known to cast an adhesive enzyme that incapacitates their prey in a web-like stasis, allowing them to strike with their sharp and venomous fangs. Wisely outsmarting any foe, they often lower quickly from forest canopies, or burrow to the surface from underground cover. If possible, prey should avoid any web strike, but if caught, fight to escape before the wyyyschokk closes in. Their hostility may provide strategic opportunities for a surprise attack from behind. Although capable of quick maneuvering, they occasionally find themselves susceptible to strikes in the head or appendages

Flame Beetle
Airborne pest with flammable posterior. Will spontaneously combust in close proximity or upon death.
The pesky flame beetle is a flying insectoid known for its bioluminescent, combustible posterior. These creatures synthesize chemicals derived from local flora into a highly flammable derivative. Extreme caution should be exercised when in close proximity.
Abilities and Upgrades giving access to locations.
Force Power Abilities, BD-1 Droid Upgrades and other Abilities will alow you, as they are discovered, to visit previously inaccessible locations. If you encounter a place you can't reach or enter, go exploring further to find more skills or abilities , then come back and try again.
Force Power Abilities
Force Slow - you know this power from the beginning of the game, it allow you to slow down time.
Wall Run - you will learn this power relatively early on the planet Bogano in Subterranean Refuge, it allow you to run for a short while on some vertical ridged walls.
Force Push - you will learn this on planet Zeffo in Tomb of Eilram, it allow you to push objects and enemies.
Force Pull - you will learn this on planet Zeffo in Tomb of Miktrull, it allow you to pull objects, enemies abd open passages.
Jedi Flip - you will learn this on planet Kashyyyk. it is long double jump.
BD-1 Droid Upgrades
Scomp Link - you can find Scomp Link on planet Zeffo but you will need Force Push, it will allow you open locked doors and chests.
Overcharge - you will get this on planet Kashyyyk, BD-1 can turn machinery on and off.
Slice - First Slice: Security Droid you will find on planet Kashyyyk, it allow BD-1 to control damaged security droids. Second Slice: Probe Droid you will find on Zeffo, it allow to control damaged probe droids.
Powered Zipline - on Zeffo after Kashyyyk, it will allow you to travel up and down ziplines.
Equipment
Underwater Breather - you can learn it on Kashyyyk, it allow to explore undewater locations, You need this skill to dive under water.
Climbing Claws - you will find Climbing Claws on planet Dathomir, they will allow you to climb on new types of walls.