iconTextButton
iconTextCheckBox
iconTextRadioButton
iconTextRadioCollection
iconTextScrollList
iconTextStaticLabel
ikHandle
ikHandleCtx
ikHandleDisplayScale
ikSolver
ikSplineHandleCtx
ikSystem
ikSystemInfo
| ikfkDisplayMethod
illustratorCurves
image
imfPlugins
inheritTransform
insertJoint
insertJointCtx
insertKeyCtx
insertKnotCurve
insertKnotSurface
instance
instanceable
instancer
| intField
intFieldGrp
intScrollBar
intSlider
intSliderGrp
interToUI 
internalVar
intersect
iprEngine
isAnimCurve
isConnected
isDirty
isParentOf
| isSameObject
isTrue
isValidObjectName
isValidString
isValidUiName
isolateSelect
itemFilter
itemFilterAttr
itemFilterRender
itemFilterType
|
indicates a MEL script