| ALL | Display all lines. |
| AST or NOAST | Display, or do not display, each executed AST node. |
| EVALMESSages or NOEVALMESSages | Display, or do not display, evaluation expression results. |
| LASTstmts or NOLASTstmts | Capture, or do not capture, the full trace for the last 50 statements executed. |
| UNParse or NOUNParse | Display, or do not display, the source code for each statement executed. |
| VARiableS or NOVARiableS | Display, or do not display, the variable values that are referenced or modified by each statement executed. |