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View a collection's data by clicking on its corresponding icon in the tree on the lefthand side of the LCSim Event Viewer.
Calorimeter Hit Collections
Select EcalBarrHits from the lefthand, event tree menu.
This view shows one record for each hit in the "EcalBarrHits" collection. These hits are objects of type SimCalorimeterHit. All of the Calorimeter hit collections (including both endcaps and barrels) are decoded in an identical fashion, so the Hcal and Muon collections will look quite similar.
Not all of the fields may make sense to you, but ones to notice for Calorimeter hits include layer, which is the logical subdetector layer of the hit, energy (e.g. the raw, uncompensated energy deposition) and position (X, Y, Z).
Tracker Hit Collections
Now click on TkrBarrHits in the event tree menu.
Similar to the calorimeter view, this shows a record for each tracker in the collection.
The key values of interest are probably layer, position (x, y, z), dedx (e.g. raw energy deposition), and time.