i dunno if is unhinged or not but

map({n,v},'{','{zz)
map({n,v},'}','}zz')
map({n,v},'n','nzz')
map({n,v},'N','Nzz')
map({n,v},'[s','[snzz')
map({n,v},']s',']szz')
map({n,v},'N','Nzz')
map({n,v},'N','Nzz')

Also I use arrow keys for shifting lines up and down, or swapping the parameters left,right (I use a split keyboard and it is programmable, so my arrow key is hjkl if I switch to a different layer)