Multi-Line Expression Editor

Help
1

I recently upgraded to 2020.4.1. Can someone explain why the Expression Editor now has multiple lines with numbers? It looks like it has been upgraded from a simple, single-line vba editor to something that allows a snippet of vba code. Would appreciate some guidance on what that can do for me.

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2

you can make your code more readable by separating it into multiple lines if necessary
e.g.
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