In Maschine, you have to distinguish between two basic types of Plug-Ins: Instrument and Effects PlugIns. Sub-types are:
Plug-Ins can be edited in the Control Area by clicking the Plug-In icon , or in Mixer view (only basic Plug-In parameter editing).
The Sample itself can be edited (truncated, reversed, stretched...) in the Sample Editor, or (only basic) in Mixer view .
Almost all parameters can be automated in the Control Area.