Hey, I think the parts you tried, just didn't work properly at that time. Now 3.0.2 is out and chords work for me. Try it out! I still do not know, where the [=G] is meant to put, though.
Like this?
---[Verse:1]---
[=G]Hosanna,
But what is, if a song does not start with the chord, that's equal to its key?