You can do it by using a Phillips hue bulb as a proxy. Have the dimmer switch turn on a specific Bulb that you don’t use for anything else. Have that bulb coming on trigger everything else you want to have happen via The same method we were discussing for the smartthings button. I know this sounds weird, but it does work.
Otherwise, you can try to get the hue dimmer to work with smartthings, but most people have found it’s just not very reliable.
