Just posting up how I set up WLED Presets on a typical 4 button scene controller. I'm not using HE to make the Presets or other adjustments in WLED, just calling Presets. Maybe there is a slicker way, but i didn't see anything using search.
Basically, i made a series of rule machine rules for each preset something like so:
In each rule the trigger points to the scene controller button events. The action makes a HTTP API call to WLED as shown below. In the action replace "WLED1.local.com" with whatever your WLED address is. The "ps" is for preset and you can edit the following number to match the id in WLED.
Hope this helps.