I hope it's not a dupe of another ZBXNEXT

I currently gather CPU usage across each CPU core on a set of hosts (or many cores on a single host), and we need some way to gather the highest single value across these items within each individual host (individual core on single host).

Aggregate and calculated are not able to satisfy this requirements.

I'm basically looking to create an item that looks something like:
highest_single_value(system.cpu.util[0],system.cpu.util[1],system.cpu.util[2],system.cpu.util[3])
lowest_single_value(...)
etc (maybe)

keywords : minimum maximum min max