Weightpaint Smooth Boneweights(like Softimage )

hello Weightpainter/rigger (softimagemigrants?!)

It is about the smoothening of weights.

I am looking for a similar function like in softimage for weightpainting,

SMOOTH

It doesn’t really matter which bone you select, see smooth_si_new_bone.

SMOOTH_SI_new_bone

in blender hmmm? i have the impression that i can use it similarly,
it depends which bone is selected ???,
see gifs., it works great one time and when i select another bone again it doesn’t

SMOOTH_first_bone

here i select the first bone, the result is different

SMOOTH_last_bone

The smoothfunction can be accessed via the menu/command smooth
active/all groups
, I would have this option while painting,
is there a setting somewhere that I need?

otherwise autosmooth is on,

Many thanks in advance :paintbrush: