Eclipse autocomplete (content assist) with facelets (jsf) and xhtml

Question

How to activate eclipse (3.5, WTP) content assist in .xhtml pages for JSF (1.2) tags, using facelets? It works in .jsp files, but not xhtml.

I google a lot, and in m

Answer 1

I had JBoss Tools installed and had JavaServer Faces facet configured for my project (in Eclipse Mars), but still didn't get any content assist from my .xhtml files. A solution not mentioned here is to choose Add JSF capabilities:

Simply right click the project, and select Configure -> Add JSF Capabilities.

It would look like the picture above but it would say Add JSF Capabilities instead of Remove JSF Capabilities. In the above picture, I had already added JSF capabilities.