LF Sub Retail PVE macro w/legendary ST / AoE

I’m new here, and I’m trying to get a macro to work with the talent spec 1323133, Venthyr (flagellation), but I’m having issues learning how to make my own. I’m using the Hekili rotation helper addon, and I’m just not sure how to get everything to work, this seems to be out of my league to make these.