bool join_start_no_extend=false,join_finish_no_extend=false;
synfigapp::ValueDesc start_duck_value_desc,finish_duck_value_desc;
bool extend_start=false,extend_finish=false,complete_loop=false;
bool join_start_no_extend=false,join_finish_no_extend=false;
synfigapp::ValueDesc start_duck_value_desc,finish_duck_value_desc;
bool extend_start=false,extend_finish=false,complete_loop=false;