Hi,
\def\pack_layers_set[#1][#2][#3]% #4 == box do \fi is ok
{\bgroup
\edef\currentlayer{#1}%
- \edef\p_pack_layers_state{\layerparameter{#1}\c!state}%
+ \edef\p_pack_layers_state{\layerparameter\c!state}%
\ifx\p_pack_layers_state\v!stop
\dowithnextboxcs\egroup\hbox
\else\ifthirdargument
\pack_layers_set_indeed[#1][#2][#3]%
\else
\doifassignmentelse{#2}
{\pack_layers_set_indeed[#1][][#2]}%
{\pack_layers_set_indeed[#1][#2][]}%
\fi\fi}
Wolfgang
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