self

Used when applying a single transform to multiple variables, to indicate that each named output variable uses itself as input. For example, if you type in the transform

!a!,!b! = $self * 2

the transforms actually generated into the Transform List will be

!a! = !self! * 2

!b! = !self! * 2

which are computationally equivalent to

!a! = !a! * 2

!b! = !b! * 2

Note that if you use $self like this, with multiple variables on the left side of the transform, those variable names must be surrounded with exclamation points (!) and separated by commas.