Welcome to the Make community!
You can also use a chrome extension to autocomplete the iml functions and whatever you don’t want to type fully.
For more information, see Autocomplete Commonly-Used Functions in IML (Mapping) Fields!
Here is my current list of shortcuts
Hope this helps! Let me know if there are any further questions or issues.
— @samliew
P.S.: Investing some effort into the Make Academy will save you lots of time and frustration using Make.