Thanks Lawrence...
I've added your requests to the list. The idea for color-coding relations statements is very similar to how the SciTe editor works. In fact, we can probably make our own SciTe definition file and use it in replacement of the PTC editor. That might give a solution to your issue faster than waiting/hoping for an official enhancement. I like your idea... I'm just thinking it might fall off the plate because it'll be seen as a "nice to have" not a "have to have".
Best regards,
-Brian