Roll an array to left or right by a number of steps.
It's nearly the same as shift-array, but with a circular array behavior.
For example a RollArr module can be used to add endless scroll capability to a data-generator-sequenced-steps module.
In HH3 this module replaces the Roll Array [V2.0] user module.
Array input flow(s).
Array output flow(s).
version 4.1.201021 GWPD birthday
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