How to search for multiple file types? My goal is to search for all files with any of the 3 file extensions I specify. I tried various things but to no avail:


Via the advanced search. Problem: no OR option.





Search field. Problem: It's not giving the dropdown for the next kind keyword. 




As a workaround, I tried using 2 different windows to combine the kind options together. Problem: OR doesn't work.




Metadata. I wanted to use the MetaData for extension, but there seems to be none available.


Thanks in advance!
A vanilla solution is to hold option and click the plus icon (now transformed into ...) for adding a new rule. This will give a list of options, among which is the Any rule.
(You may need to delete the initial rule; the option click method only works on subsequent rules)

Screenshot: