Trying to modify Dervish Dance... help

[Coopernicus]

What I actually want to do is create a feat so that a player can use any light or single handed slashing weapon to qualify for the Duelist's precise striking ability, not just the scimitar.

I'm thinking of including all single-handed axes, falcata, khopesh, kukri, longsword, sawtooth saber, shortsword, sickle, sword_aldori dueling, sword_bastard (only after the character can use 1-handed by taking exotic WP), temple sword, war razor and (even) whip.

I have named it Blade Dance but I'm new at this and have zero experience with coding.

So I used "copy new" using Dervish dance as a base and am wondering if any kind soul that knows how can reply with the proper code to replace

#hasfeat[fWepMart] + hero.tagis[WepProf.wScimitar] <> 0

with one for all single handed slashing weapons...

Or is it even possible?

Thanks