I’m hopping back into trying to write a tool or two, and the “Show Example Tools” option is gone it seems. I used to use Renoise on Windows and now I’m on Mac if that makes any difference.
I can pull up the examples and whatnot from the actual tools folder, but I can’t fidget with them in Renoise to see how they actually work.
Tools also have a disabled/enabled flag. If you open the “Tool Browser…” (top of this menu), you can disable/enable tools that are in the tools folder.
If this advise doesn’t help, maybe manifest.xml got deleted by mistake from the tools folder in question. That’s much less likely, though.