In all of my copious amount of reading examples and the fastLED documentation, I recall seeing a method of grouping LEDs in a strip or string. (But, I can't find it again).
For example, picture a string of 50 LEDs. I want to control them in sets of five (10 LEDs per set). But I want to use the same functions for each set.
I could do this with arrays, but before I embark on programming my project this way, is there a method for this already in the library?