OpenMDAO
diff --git a/‎aviary/variable_info/variable_meta_data.py‎
Lines changed: 1 addition & 1 deletion b/‎aviary/variable_info/variable_meta_data.py‎
Lines changed: 1 addition & 1 deletion
@@ -1585,7 +1585,7 @@
     desc='aircraft cruise Mach number',
     # TODO: derived default value: Aircraft.Design.CRUISE_MACH ???
     default_value=0.0,
-    # option=True,
+    option=True,
 )
 
 add_meta_data(
Original file line number	Diff line number	Diff line change
`@@ -1585,7 +1585,7 @@`
`1585`	`1585`	`desc='aircraft cruise Mach number',`
`1586`	`1586`	`# TODO: derived default value: Aircraft.Design.CRUISE_MACH ???`
`1587`	`1587`	`default_value=0.0,`
`1588`		`- # option=True,`
	`1588`	`+ option=True,`
`1589`	`1589`	`)`
`1590`	`1590`
`1591`	`1591`	`add_meta_data(`