I'm not sure if something similar already exists out there, but I went ahead and started a library of Pd-vanilla abstractions for searching and manipulating [array]s. Following the naming of [list-abs], I've called it [array-abs].

See the GitHub repo with a list of objects here: https://github.com/wbrent/array-abs.git, and download via deken. I hope it's useful to someone other than me!

William

--