Functions have gone from dropdown box in query

In my previous bas programs, I used some of the functions which were available in a query.
Now since I lost those programs I have decided to start again with base. I have a query where I want to extract the highest temperature from a list etc, but when I want to select a function, there are no functions. I don’t understand why they were available before but not now in a new base file.

Please don’t repost the same question. If you need to add information, just edit it. Thanks.

Can you direct me to the said same post

@Avvy65 - I did. Please click the link in my comment.