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How to create a collapsable function.

Some native functions in blueprint has a collapsable option where some arguments are by default hidden.

An example of this is the PrintString, by default it has a short form showing only “In String” arg:
7fc53603eed837daef502747c37005de3578c8fb.png

but if you click in the arrow button in the bottom you can see a few more arguments:

19087fa5b0e94ab1d84dfe34936a94ec6c8452eb.png

Is there a way to put this behavior in my blueprint functions?
https://forums.unrealengine.com/core/image/gif;base64
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