Use better keys for selection mode

nnn.1

@@ -131,16 +131,18 @@ auto selects the directory and enters it in this mode.
 .Sh SELECTION
 Use \fI^K\fR to select the file under the cursor.
 .Pp
-To select multiple files the selection mode should be enabled using \fI^Y\fR.
+To select multiple files press \fI^Y\fR and enter selection mode.
 In this mode it's possible to
 .Pp
-(1) cherry-pick individual files one by one by pressing <kbd>^K</kbd> on each entry (works across directories and contexts); or,
+(1) cherry-pick individual files one by one by pressing \fI^K\fR on each entry (works across directories and contexts); or,
 .br
 (2) navigate to another file in the same directory to select a range of files.
 .Pp
-Press \fI^Y\fR again to save the selection and exit selection mode.
+Running any operation that uses the selection OR pressing \fI^Y\fR again will save the selection and exit the selection mode.
 .Pp
-Selected files are visually indicated by a \fB+\fR before the entries.
+Press \fI^Y\fR twice to clear selection.
+.Pp
+Selected files are visually indicated by a \fI+\fR before the entries.
 .br
 The files in the list can now be listed, copied, moved, removed, archived or linked.
 .br
@@ -162,7 +164,7 @@ when dealing with the !, e and p commands respectively. A single combination to
 .Bd -literal
     export NNN_PLUG='o:fzy-open;p:mocplay;d:ndiff;m:nmount;t:thumb;i:mediainf'
 
-    NOTE: To run a plugin directly, press 'x' followed by the plugin key.
+    NOTE: To run a plugin directly, press \fI:\fR followed by the plugin key.
 .Ed
 .Pp
 \fBNNN_USE_EDITOR:\fR use VISUAL (else EDITOR, preferably CLI, fallback vi) to handle text files.
@@ -201,7 +203,7 @@ when dealing with the !, e and p commands respectively. A single combination to
 .Nm
 may not handle keypresses correctly when used with tmux (see issue #104 for more details). Set \fBTERM=xterm-256color\fR to address it.
 .Pp
-Use the keybind \fBK\fR to toggle selection if you are having issues with \fB^Y\fR on *BSD or macOS. To use \fB^Y\fR, run:
+Use the keybind \fI'\fR to toggle selection if you are having issues with \fI^Y\fR on *BSD or macOS. To use \fI^Y\fR, run:
 .Bd -literal
     stty dsusp undef
 .Ed

src/nnn.c

@@ -2856,8 +2856,8 @@ static bool show_help(const char *path)
 		"1FILES\n"
 		 "b^O  Open with...      n  Create new/link\n"
 		  "cD  File detail   ^R F2  Rename/duplicate\n"
-	   "5⎵ ^K / Y  Select entry/all  r  Batch rename\n"
-	       "9K ^Y  Toggle selection  y  List selection\n"
+	   "5⎵ ^K / a  Select entry/all  r  Batch rename\n"
+	       "9' ^Y  Toggle selection  y  List selection\n"
 		  "cP  Copy selection    X  Delete selection\n"
 		  "cV  Move selection   ^X  Delete entry\n"
 		  "cf  Create archive    C  Execute entry\n"

src/nnn.h

@@ -198,10 +198,10 @@ static struct key bindings[] = {
 	{ CONTROL('K'),   SEL_SEL },
 	{ ' ',            SEL_SEL },
 	/* Toggle select multiple files */
-	{ 'K',            SEL_SELMUL },
+	{ '\'',           SEL_SELMUL },
 	{ CONTROL('Y'),   SEL_SELMUL },
 	/* Select all files in current dir */
-	{ 'Y',            SEL_SELALL },
+	{ 'a',            SEL_SELALL },
 	/* Show list of copied files */
 	{ 'y',            SEL_SELLST },
 	/* Copy from selection buffer */