iTach WF2IR Light control

Hi! Im been using home assistant for some time and I can control TVs and other IR stuff, but I have a 433Mhz adapter to it so I can control my lights (NEXA) also but I can only get ON/OFF as a remote, Any one that know how to make it to a light switch instead? or how to make a custom Dimmable switch, that I can add different values/HEX codes to different setting 1-10?