how to sort skills by "Usable? / Unusable?"

for comportable using skills in battle skill window,
I want to sort (place order) skills
by use-able or not.

sorry my bad English
let me explain one more time.

if a skill can be used? -> bring it first order!
if a skill cannot be used? -> to the last order!

I found link for sorting items
https://forums.rpgmakerweb.com/index.php?search/5523148/&q=sorting&o=date&c[title_only]=1

there are some plugins like I said, but those are not exactly I want.

https://www.w3schools.com/js/js_array_sort.asp

where, oh, where could somebody find information, in the age of information?

upon bringing up the data set with makeItemList(), add the instruction to sort the lot right after that.