Find:       (:update\s.*)(_new)
Replace:    $1

Given text:

foo:update example_new
foo:update word_new
foo:update also_new

Output:

foo:update example
foo:update word
foo:update also

Hotkeys

Ctrl + ]           goto next bracket
Ctrl + Shift + ]   select all for next bracket
Ctrl + Shift + M   jump before or after closest bracket
ALT + Up | Down    next function
ALT + Home         breadcrumbs

Live templates

How to make dynamic class name:

Plugins

https://github.com/bodiam/intellij-bootstrap3