To hit several times is more complicated.

Not really, to "hit" several times within the same attack depends on how you want to activate the hitdef. For Example, let's say I want state 200 to hit four times; all I need to do is alter the hitdef trigger to make it happen.

[State 200, 1]
type = HitDef
trigger1 = Time = 0
attr = S, NA
damage = 20, 5
animtype = Light
guardflag = MA
hitflag = MAF
priority = 4, Hit
pausetime = 7,7
sparkno = s7000
sparkxy = -13, -65
guard.sparkno = s7006
guard.sparkxy = -13, -65

As you can see the current hitdef is set to activate only once, and as soon contact is made. To be more accurate, Frame 3 (Because it is the only frame with a Clsn1) in animation 200 is the point of contact. That said let's change it.

type = HitDef
trigger1 = animelem = 3

To make the hitdef to activate more than once you can do this in a number of ways: Time, animelem, animelemtime, a combo of vars and string arugments. Lets use animelem.

Now let's say I have three extra frames with Clsn1's (Frames 4, 5, and 6), and I want to add those frames to the hitdef; then you just need to do this.

type = HitDef
trigger1 = animelem = 3
trigger2 = animelem = 4
trigger3 = animelem = 5
trigger4 = animelem = 6

You can also simplify this to this:

type = HitDef
trigger1 = animelem = 3 || animelem = 4 || animelem = 5
trigger2 = animelem = 6

Save & Test.