5a1b5b78_nt_Instructions___Eclipsepedia__description
[instruction] installFeature [parameters] feature, featureId, version [description] 
Installs the feature referenced by the parameter feature (matched against artifacts in the iu). The feature is installed with the id specified by the parameter featureId, or if this parameter has the value default, with the id specified in the artifact referenced by feature. The features is installed with the version specified in version, or with the version specified in the artifact referenced by the feature parameter if the version parameter has the value default
Equinox/p2/Engine/Touchpoint Instructions - Eclipsepedia