with:

assign_z_ =: 4 : '(x) =: y'
assignwith =: 1 : ('y assign u y~';':';'y assign x u y~')


   assignwith
1 : 0
y assign u y~
:
y assign x u y~
)

its possible to do += type operators from c-like languages

a=: 2
   2 + assignwith 'a'
4
   a
4
   +: assignwith 'a'
8

plusequal =: (+ assignwith)
   'a' plusequal 4
12

Is there any possibility of adopting this adverb to work with =. in user 
definitions?

so,

myverb =: 3 : 0
c =. 0
2 + lassignwith 'c'
)

I understand that it is not the most useful needed feature, but I'd like to 
know if there is any possible hack for doing so.
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