--- old/symbols/cn	2018-04-27 23:31:51.071094700 -0400
+++ new/symbols/cn	2018-04-27 23:35:49.993482800 -0400
@@ -204,17 +204,18 @@
 // Pinyin Keyboard, in the style of altgr-intl
 //
 // Chinese speakers and learners often find it hard to type Hanyu Pinyin
-// with all its tones and ü. This file defines an altgr-intl-like behavior.
+// with all its tones and ü. This file defines an altgr-intl-like behavior,
+// with dead keys activated by "AltGr + <key>".
 //
 // Number row keys 1 2 3 4 are defined as dead-keys for the tones.
 // They correspond to the four tones in Hanyu Pinyin.
 //
+// To generate a · for "neutral" syllables, use AltGr + ` (grave).
 // To generate a raw ü, use AltGr + v.
 // V is used instead of ü for tones.
 //
 // This file should be used with an appropriate XCompose file with
 // definitons for dead_{macron,acute,caron,grave} + a/e/i/o/u/v(ü).
-// en_US.UTF-8's Compose may be used for this purpose.
 // --Mingye Wang <arthur200126@gmail.com>
 
 partial alphanumeric_keys
@@ -222,6 +223,7 @@
    include "us(basic)"
    name[Group1]= "Hanyu Pinyin (altgr)";
 
+   key <TLDE> { [      grave,	asciitilde,  periodcentered,	asciitilde ]	};
    key <AE01> { [	   1,	exclam,		dead_macron,	    macron ]	};
    key <AE02> { [	   2,	at,		dead_acute,	     acute ]	};
    key <AE03> { [	   3,	numbersign,	dead_caron,	     caron ]	};