Codelists feature - excluding terms through the search box

[Hassy2u]

Hi
Having looked through documentation for creating a code list using the code list builder, I don't think the feature to exclude terms through the search box is available, like using the minus sign before a term.

As an example, I am using the pseudo BNF list to try to narrow down a list of medications (opioids), which I want to restrict to oral and transdermal patches. I want to exclude certain types of delivery (injections and suppositories). Rather than going through the entire list of medicine names and descriptions, it would be much easier if I could exclude all instances of the word "injection" from my subset.