Changes
/* SWAP */
==== <code>SWAP</code> ====
: [SWAP works only in combination with the window command.Every error or status messages from the operating system will be displayed normaly on WINDOW#0 (=''main'' window).WINDOW SWAP changes the ''main'' window to the desired target window.]: Example (if a window with number 4 was defined before...):<pre>WINDOW SWAP 0,4</pre>
==== <code>SYMBOL n,i1[,i2,i3,i4,i5,i6,i7,i8]</code> ====
