Does Rampage make Additional Damage RNG roll 4 times?

I played 1hDagger before and found that Hidden Arm triggered 4 times whenever I'd use Rampage, would Additional Damage roll for the same amount of rng then?

 

rampage is treated as 1 attack per hit (divided into 4 slash)

rampage per 4 slash = 1x hidden arm , 1x additional melee/magic only (in hidden arm is already split into 4)

damage limit is also divided into 4 instead of getting 1x4

ex. your rampage slash damage is 10k per slash (total of 40k in 4slash per hit)
if the boss has damage limit 10k only. your rampage damage will turn into 2500x4 = 10000 instead of 10000x4=40000 (one of worst mechanics in rampage. same also in buster blade)

 

Oh I see, I see, guess I'll have to tweak how this 1hD will work...