%
% stack: builder layer-text
%
[()]
"buttoner" log)(
_Cton.Buttoner <>
"butA" log)(
{
 _Cton.ButParent
"butB" log)(
 {
  *ctonbutp
 } if
}
{
"butM" log)(
 *ctonbutj
"butN" log)(
} ifelse
%
% stack: builder layer-text
%
"buttonex" log)(