Actually, it's largely thanks to Marko that the Wiki doesn't look completely identical to what you remember from all those years ago. He's the one that added the documentation on the expressions you were just looking at Lise. (He's also the guy I mentioned who struggled with the And() function!)
Thanks, though there are others. MrC made many insightful contributions, and glynor too, including much reorganising and categorising, and to any other contributors out there, please don't be offended that you're not named. All contributions are appreciated by many many MC users.
Marko, was And() one of the ones you just documented for the Wiki? Did we just add that function in 26 with all those other expressions we formulated in that big spurt? I can't remember, and it was never mentioned in the release notes.
I added it in June this year, but, as per the disclaimer at the head of the
Function Index, we didn't track when each expression was actually added, so, the only way to be sure you have it is to run the latest MC
Lise was just struggling with it, because evidently it wasn't in her MC24. And when I looked at this page:
https://wiki.jriver.com/index.php/Boolean_Operations
It says right at the top "The Expression Language does not have AND, OR and XOR logical connectives" and of course now it does. Another page for you to update!
Updated
Also, I keep a todo list of expression changes that need updated in the wiki
here. The red entries are still to be done. I should probably add a link to that in the function index header too...
-marko