\input regression-test.tex
\documentclass{article}
\usepackage[legacy,shape=rectangle,rows=2,seats per row=3]{seatingchart}

\begin{document}
\START

\ifx\scSeatingList\scGenerateSeatingList
  \TYPE{OLD-NAME=LEGACY-ALIAS}
\else
  \TYPE{OLD-NAME=LEGACY-NOT-ALIAS}
\fi

\makeatletter
\RenewDocumentCommand{\sc@active@DrawSeating}{o}{\toggletrue{sc@drawn}}
\let\scDrawSeating\sc@active@DrawSeating
\makeatother

\scRemoveSeatAt{1}{2}
\scAssignSeatAt{2}{1}{legacy}
\begin{luacode*}
  local values = {}
  for i = 1, AllSeats.size do
    local seat = AllSeats[i]
    values[i] = string.format("%d:%d:%s", seat.row, seat.col, seat.kind)
  end
  texio.write_nl("log", "LEGACY=" .. table.concat(values, ","))
\end{luacode*}
\scDrawSeating

\END