This came up in several different forms over the last couple of years, but there wasn't a sufficient push to make it part of Teiid Designer. The roadmap for Teiid Designer now is simply occasional maintenance releases to keep up with Eclipse. No future feature work is expected from the core team, but of course it could be contributed.
Got it. Looks like Beetle Studio, komodo and the cloud offering are the future state. I'll see if I can fit the teiiddes eclipse tooling dev into next year. Thanks!