Hey this is awesome, thank you for posting it. I am trying to get Flexible Squares to work right now and I'm getting the same problem as someone further up in the entry;

Basically when deleting the lines from the text so it will appear without errors, I can do the first two fine but not the last two;

→ set text_meta_groups = "Groups";
→ "flag" => $*text_flag,

These are the errors I am getting;

BuildS2 Compiler Output at Thu May 21 14:56:59 2009
Error compiling layer:
Compile error: line 1758, column 41: Unknown property
S2::NodeVarRef, S2/NodeVarRef.pm, 171
S2::NodeTerm, S2/NodeTerm.pm, 174
S2::NodeTerm, S2/NodeTerm.pm, 66
S2::NodeExpr, S2/NodeExpr.pm, 46
S2::NodeArrayLiteral, S2/NodeArrayLiteral.pm, 108
S2::NodeTerm, S2/NodeTerm.pm, 214
S2::NodeTerm, S2/NodeTerm.pm, 66
S2::NodeExpr, S2/NodeExpr.pm, 46
S2::NodeVarDeclStmt, S2/NodeVarDeclStmt.pm, 54
S2::NodeStmtBlock, S2/NodeStmtBlock.pm, 108
S2::NodeIfStmt, S2/NodeIfStmt.pm, 92
S2::NodeStmtBlock, S2/NodeStmtBlock.pm, 108
S2::NodeFunction, S2/NodeFunction.pm, 230
S2::Checker, S2/Checker.pm, 374
S2::Compiler, S2/Compiler.pm, 34
Context

1754: "edit_entry" => $*text_edit,
1755: "edit_tags" => $*text_edit_tags,
1756: "mem_add" => $*text_memories,
1757: "tell_friend" => $*text_tell_friend,
1758: "flag" => $*text_flag,
1759: "watch_comments" => $*text_track,
1760: "unwatch_comments" => $*text_untrack,
1761: };
1762: print safe """