how to used,pls

[chriszxlu]

im not be good at english.
so my question is :
How to set the search do not distinguish between Uppercase and lowercase letters.
ex:
use“abc”
can get “abc” "Abc" "ABC " "aBc".....

[therube]

That should be the default.

case:, nocase:, Search | Match Case, will all have bearing on the matter.