usage:
revert_Argument_to_TeX_brace(document, LineOfBegin, LineOfEnd, StartArgument, EndArgument, isEnvironment, isOpt)
LineOfBegin is the line of the \\begin_layout or \\begin_inset statement
usage:
revert_Argument_to_TeX_brace(document, LineOfBegin, LineOfEnd, StartArgument, EndArgument, isEnvironment, isOpt)
LineOfBegin is the line of the \\begin_layout or \\begin_inset statement