Button visible on issue change, but not in wiki

[dominch]

Plugins works great in redmine 2.6 on issues edit, but it's not on wiki pages :(
I need to add sometimes code to wiki too is there any way to make that work there too?

[Ying666]

Same problem with Redmine 3.1, with Redmine 2.5 it worked fine.
It still works on the wikipage if you copy or do the code class="sql" thing by our self.
Just the button is missing.