Using Hue Emulation to trigger multiple items

Am just working on some master scenes that work across Hue and KNX (so far have each system working fine).

I’m really just thinking percentages, and maybe a color for the Hue side, and probably for simplicity not re-using the native scene functionality either side. So just sending percentages and colors as well as on/off. Not sending scene names.

I had started using the one rule, one sitemap, one item many scripts option published on here, but realised it might not make Hue emulation work with Alexa and Google.

Any suggestions on an option that works…and how I’d configure the rule or item to be mappable to Alexa?