More or less same functionality on all devices .
Go Adapters > select Generic adapter > Select HUE > Reload device list .
Select services for your device .
My HUE lamp reports that it has
Light control(out_lvl_switch)
Alert scene(scene_ctrl)
Color control(color_ctrl)
Your smart plug probably have
indicator_ctrl
meter_elec
I did not find any power report there, but only having lamps that’s logical …
IF I had found the one you mention , I would test it from the /fimp/thing-view/hue page. Verified in /fimp/timeline that messages was sent , and then started coding …
Find my efforts at Best Practice Development - Thingsplex / Advanced flows - Futurehome