Long press button card to activate dimmer light control

HI All,

Relatively new to HA and loving it. Have a question. Many of my light switches are Z-Wave and many of those those control Zigbee controlled can led lighs. I have all the cans set for color temp and initial brightness but would like a way to adjust dim state via a long press of the button card. I saw someone had this set up on a youtube video a couple weeks ago but i cant find it again. Could someone point my in the right direction? I currently have 2 cards set up one button to control the Z-wave switch on/off and another light button controlling the can light dim function. Both work perfectly separately but i would like to integrate them into a single card if possible.

Thanks in advance