+**.org** *location* [*X:*/*Y:*/*P:*/*L:*]
+
+ This directive sets the value of the location counter (or **pc**) to location, an
+ expression that must be defined and absolute. It is legal to use the directive in
+ the following modes: 6502, Tom, Jerry, OP, 56001 and 680x0 (only with -fr switch).
+ Especially for the 56001 mode the *location* field **must** be prefixed with the
+ intended section (*X:*, *Y:*, *P:* or *L:*).
+
+**.opt** *"+On"*
+**.opt** *"~On"*
+**.opt** *"+Oall"*
+**.opt** *"~Oall"*
+
+ These directives control the optimisations that rmac applies to the source
+ automatically. Each directive is applied immediately from the line encountered
+ onwards. So it is possible to turn specific optimisations on and off globally
+ (when placed at the start of the first file) or locally (by turning desired
+ optimisations on and off at certain parts of the source). For a list of the
+ optimisations (*n*) available please consult the table in section `The Command Line`_.
+ **all**, as expected, turns all available optimisations on or off.
+
+ Lastly, as a "creature comfort" feature, if the first column of any line is prefixed
+ with an exclamation mark (*!*) then for that line all optimisations are turned off.
+