I am creating a few Apache FOP documents using velocity and XSLT templates and I find it very difficult to work with Intellij IDE because it doesn't give me hints of the allowed attributes for a node and marks as "error" all the nodes. Is there any plug-in I can use that solves this problem?
I have tried with the only one I have found online:
https://plugins.jetbrains.com/plugin/7736?pr=idea
But it doesn't seem to do much.
Any ideas?

It seems, that you don't have properly set XML schema for namespace http://www.w3.org/1999/XSL/Format in the IDE. I had the
same problem when I asked Idea to download missing schemas.
Instead of downloading, the IntelliJ Idea created the empty one.
This helped me:
http://www.w3.org/1999/XSL/Format to the downloaded file (Preferences -> Languages & Frameworks -> Schemas & DTDs).Links:
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