...
set wc \
    [winfo parent $target];
set id \
    [lsearch -exact \
    [$wc tabs] $target]

return \
    [dumper::notebook  \
    [vgcode::baseName $wc $basename $id_base]  $ta_name \
    [dumper::properties  \
    [vgcode::clearOptions \
    [$wc tab $id] $basename] $target]]