How to use regular expression groups to replace in "Find and Replace" (Ctrl+H) in PhpStorm?

Question

phpstorm

Hello! I want to use a group to replace. But its number is put instead. Why? I am attaching a screenshot.

As a result,
preg_match_all();
Replaced by
preg_2_not_all();
A should by
preg_match_not_all();
But in Notepad ++ everything works as it should. How can I use this functionality for PhpStorm?
Here is the regular expression I'm searching for:
(preg_)(.*)(_all)
Here is the replacement regular expression:
preg_\2_not_all

Answer 1

Try $2instead\2