moved controls to submenus in "Customize Controls" menu

What is done:
D1. Controls are separated by existing sections, each section is now a submenu;
D2. The original sections are preserved;
D3. The original controls order is preserved;
D4. "Controls" section is renamed to "Game", because "Controls" submenu of "Customize Controls" would be too confusing;
D5. Map (automap) controls are added as a section, map controls submenu is unchanged;
D6. Missing controls are added to "Other" section;
D7. Sections are given a title following the scheme "Customize <section> Controls", except N4 (see below).
D8. Inside the sections, spaces are added to group the related controls.

Things that I'm not sure about:
N1. "Game" controls section name is too generic - I'll gladly change it to something more suitable;
N2. "Other" controls section name is too generic - I'll gladly change it to something more suitable;
N3. Map controls submenu could use some spacing, and internal title ("Map Controls") is redundant;
N4. "Strife Popup Screens" section name is too long to fit in scheme described in D7, therefore the title is "Strife Popup Screens Controls";
N5. "Game" section could be divided further, but this will break the original menu structure.

wadsrc/static/language.enu

@@ -1778,6 +1778,27 @@ CNTRLMNU_TOGGLERUN				= "Toggle Run";
 CNTRLMNU_STRAFE					= "Strafe";
 CNTRLMNU_SCOREBOARD				= "Show Scoreboard";
 CNTRLMNU_TOGGLESCOREBOARD		= "Toggle Scoreboard";
+CNTRLMNU_ACTION					= "Action";
+CNTRLMNU_ACTION_TITLE				= "Customize Action Controls";
+CNTRLMNU_CHAT_TITLE				= "Customize Chat Controls";
+CNTRLMNU_WEAPONS_TITLE				= "Customize Weapon Controls";
+CNTRLMNU_INVENTORY_TITLE			= "Customize Inventory Controls";
+CNTRLMNU_OTHER_TITLE				= "Customize Other Controls";
+CNTRLMNU_POPUPS_TITLE				= "Strife Popup Screens Controls";
+CNTRLMNU_PAUSE					= "Pause";
+CNTRLMNU_DISPLAY_INC				= "Increase Display Size";
+CNTRLMNU_DISPLAY_DEC				= "Decrease Display Size";
+CNTRLMNU_OPEN_HELP				= "Open Help";
+CNTRLMNU_OPEN_SAVE				= "Open Save Menu";
+CNTRLMNU_OPEN_LOAD				= "Open Load Menu";
+CNTRLMNU_OPEN_OPTIONS				= "Open Options Menu";
+CNTRLMNU_OPEN_DISPLAY				= "Open Display Menu";
+CNTRLMNU_QUICKSAVE				= "Quicksave";
+CNTRLMNU_QUICKLOAD				= "Quickload";
+CNTRLMNU_EXIT_TO_MAIN				= "Exit to Main Menu";
+CNTRLMNU_TOGGLE_MESSAGES			= "Toggle Messages";
+CNTRLMNU_MENU_QUIT				= "Quit Game";
+CNTRLMNU_ADJUST_GAMMA				= "Adjust Gamma";
 CNTRLMNU_CHAT					= "Chat";
 CNTRLMNU_SAY					= "Say";
 CNTRLMNU_TEAMSAY				= "Team say";

wadsrc/static/menudef.txt

@@ -425,50 +425,110 @@ ListMenu "PlayerMenu"
 OptionMenu "CustomizeControls" protected
 {
 	Title "$CNTRLMNU_TITLE"
+
+	StaticText ""
+	Submenu    "$CNTRLMNU_ACTION"      , "ActionControlsMenu"
+
+	StaticText ""
+	Submenu    "$CNTRLMNU_CHAT"        , "ChatControlsMenu"
+
+	StaticText ""
+	Submenu    "$CNTRLMNU_WEAPONS"     , "WeaponsControlMenu"
+
+	StaticText ""
+	Submenu    "$CNTRLMNU_INVENTORY"   , "InventoryControlsMenu"
+
+	StaticText ""
+	Submenu    "$CNTRLMNU_OTHER"       , "OtherControlsMenu"
+
+	StaticText ""
+	Submenu    "$CNTRLMNU_POPUPS"      , "StrifeControlsMenu"
+
+	StaticText ""
+	Submenu    "$MAPCNTRLMNU_CONTROLS" , "MapControlsMenu"
+}
+
+OptionMenu "ActionControlsMenu" protected
+{
+	Title "$CNTRLMNU_ACTION_TITLE"
 	ScrollTop 2
 	StaticTextSwitchable "$CNTRLMNU_SWITCHTEXT1", "$CNTRLMNU_SWITCHTEXT2", "ControlMessage"
+
 	StaticText ""
-	StaticText 	"$CNTRLMNU_CONTROLS", 1
 	Control    "$CNTRLMNU_ATTACK"           , "+attack"
 	Control    "$CNTRLMNU_ALTATTACK"        , "+altattack"
 	Control    "$CNTRLMNU_RELOAD"           , "+reload"
 	Control    "$CNTRLMNU_ZOOM"             , "+zoom"
-	Control		"$CNTRLMNU_USER1",					"+user1"
+
-	Control		"$CNTRLMNU_USER2",					"+user2"
+	StaticText ""
-	Control		"$CNTRLMNU_USER3",					"+user3"
-	Control		"$CNTRLMNU_USER4",					"+user4"
 	Control    "$CNTRLMNU_USE"              , "+use"
+
+	StaticText ""
 	Control    "$CNTRLMNU_FORWARD"          , "+forward"
 	Control    "$CNTRLMNU_BACK"             , "+back"
 	Control    "$CNTRLMNU_MOVELEFT"         , "+moveleft"
 	Control    "$CNTRLMNU_MOVERIGHT"        , "+moveright"
+
+	StaticText ""
 	Control    "$CNTRLMNU_TURNLEFT"         , "+left"
 	Control    "$CNTRLMNU_TURNRIGHT"        , "+right"
 	Control    "$CNTRLMNU_TURN180"          , "turn180"
+
+	StaticText ""
 	Control    "$CNTRLMNU_JUMP"             , "+jump"
 	Control    "$CNTRLMNU_CROUCH"           , "+crouch"
 	Control    "$CNTRLMNU_TOGGLECROUCH"     , "crouch"
+
+	StaticText ""
 	Control    "$CNTRLMNU_MOVEUP"           , "+moveup"
 	Control    "$CNTRLMNU_MOVEDOWN"         , "+movedown"
 	Control    "$CNTRLMNU_LAND"             , "land"
+
+	StaticText ""
 	Control    "$CNTRLMNU_MOUSELOOK"        , "+mlook"
 	Control    "$CNTRLMNU_KEYBOARDLOOK"     , "+klook"
 	Control    "$CNTRLMNU_LOOKUP"           , "+lookup"
 	Control    "$CNTRLMNU_LOOKDOWN"         , "+lookdown"
 	Control    "$CNTRLMNU_CENTERVIEW"       , "centerview"
+
+	StaticText ""
 	Control    "$CNTRLMNU_RUN"              , "+speed"
 	Control    "$CNTRLMNU_TOGGLERUN"        , "toggle cl_run"
 	Control    "$CNTRLMNU_STRAFE"           , "+strafe"
+
+	StaticText ""
 	Control    "$CNTRLMNU_SCOREBOARD"       , "+showscores"
 	Control    "$CNTRLMNU_TOGGLESCOREBOARD" , "togglescoreboard"
+
+	StaticText ""
+	Control    "$CNTRLMNU_USER1"            , "+user1"
+	Control    "$CNTRLMNU_USER2"            , "+user2"
+	Control    "$CNTRLMNU_USER3"            , "+user3"
+	Control    "$CNTRLMNU_USER4"            , "+user4"
+}
+
+OptionMenu "ChatControlsMenu" protected
+{
+	Title "$CNTRLMNU_CHAT_TITLE"
+	ScrollTop 2
+	StaticTextSwitchable "$CNTRLMNU_SWITCHTEXT1", "$CNTRLMNU_SWITCHTEXT2", "ControlMessage"
+
 	StaticText ""
-	StaticText 	"$CNTRLMNU_CHAT", 1
 	Control    "$CNTRLMNU_SAY"     , "messagemode"
 	Control    "$CNTRLMNU_TEAMSAY" , "messagemode2"
+}
+
+OptionMenu "WeaponsControlMenu" protected
+{
+	Title "$CNTRLMNU_WEAPONS_TITLE"
+	ScrollTop 2
+	StaticTextSwitchable "$CNTRLMNU_SWITCHTEXT1", "$CNTRLMNU_SWITCHTEXT2", "ControlMessage"
+
 	StaticText ""
-	StaticText 	"$CNTRLMNU_WEAPONS", 1
 	Control    "$CNTRLMNU_NEXTWEAPON"     , "weapnext"
 	Control    "$CNTRLMNU_PREVIOUSWEAPON" , "weapprev"
+
+	StaticText ""
 	Control    "$CNTRLMNU_SLOT1"          , "slot 1"
 	Control    "$CNTRLMNU_SLOT2"          , "slot 2"
 	Control    "$CNTRLMNU_SLOT3"          , "slot 3"
@@ -479,24 +539,75 @@ OptionMenu "CustomizeControls" protected
 	Control    "$CNTRLMNU_SLOT8"          , "slot 8"
 	Control    "$CNTRLMNU_SLOT9"          , "slot 9"
 	Control    "$CNTRLMNU_SLOT0"          , "slot 0"
+}
+
+OptionMenu "InventoryControlsMenu" protected
+{
+	Title "$CNTRLMNU_INVENTORY_TITLE"
+	ScrollTop 2
+	StaticTextSwitchable "$CNTRLMNU_SWITCHTEXT1", "$CNTRLMNU_SWITCHTEXT2", "ControlMessage"
+
 	StaticText ""
-	StaticText 	"$CNTRLMNU_INVENTORY", 1
 	Control    "$CNTRLMNU_USEITEM"      , "invuse"
 	Control    "$CNTRLMNU_USEALLITEMS"  , "invuseall"
+
+	StaticText ""
 	Control    "$CNTRLMNU_NEXTITEM"     , "invnext"
 	Control    "$CNTRLMNU_PREVIOUSITEM" , "invprev"
+
+	StaticText ""
 	Control    "$CNTRLMNU_DROPITEM"     , "invdrop"
 	Control    "$CNTRLMNU_QUERYITEM"    , "invquery"
-	Control 	"$CNTRLMNU_DROPWEAPON",				"weapdrop"
+
+	StaticText ""
+	Control    "$CNTRLMNU_DROPWEAPON"   , "weapdrop"
+}
+
+OptionMenu "OtherControlsMenu" protected
+{
+	Title "$CNTRLMNU_OTHER_TITLE"
+	ScrollTop 2
+	StaticTextSwitchable "$CNTRLMNU_SWITCHTEXT1", "$CNTRLMNU_SWITCHTEXT2", "ControlMessage"
+
 	StaticText ""
-	StaticText 	"$CNTRLMNU_OTHER", 1
 	Control    "$CNTRLMNU_AUTOMAP"         , "togglemap"
+
+	StaticText ""
 	Control    "$CNTRLMNU_CHASECAM"        , "chase"
 	Control    "$CNTRLMNU_COOPSPY"         , "spynext"
+
+	StaticText ""
 	Control    "$CNTRLMNU_SCREENSHOT"      , "screenshot"
 	Control    "$CNTRLMNU_CONSOLE"         , "toggleconsole"
+	Control    "$CNTRLMNU_PAUSE"           , "pause"
+
+	StaticText ""
+	Control    "$CNTRLMNU_DISPLAY_INC"     , "sizeup"
+	Control    "$CNTRLMNU_DISPLAY_DEC"     , "sizedown"
+	Control    "$CNTRLMNU_TOGGLE_MESSAGES" , "togglemessages"
+	Control    "$CNTRLMNU_ADJUST_GAMMA"    , "bumpgamma"
+
+	StaticText ""
+	Control    "$CNTRLMNU_OPEN_HELP"       , "menu_help"
+	Control    "$CNTRLMNU_OPEN_SAVE"       , "menu_save"
+	Control    "$CNTRLMNU_OPEN_LOAD"       , "menu_load"
+	Control    "$CNTRLMNU_OPEN_OPTIONS"    , "menu_options"
+	Control    "$CNTRLMNU_OPEN_DISPLAY"    , "menu_display"
+	Control    "$CNTRLMNU_EXIT_TO_MAIN"    , "menu_endgame"
+	Control    "$CNTRLMNU_MENU_QUIT"       , "menu_quit"
+
+	StaticText ""
+	Control    "$CNTRLMNU_QUICKSAVE"       , "quicksave"
+	Control    "$CNTRLMNU_QUICKLOAD"       , "quickload"
+}
+
+OptionMenu "StrifeControlsMenu" protected
+{
+	Title "$CNTRLMNU_POPUPS_TITLE"
+	ScrollTop 2
+	StaticTextSwitchable "$CNTRLMNU_SWITCHTEXT1", "$CNTRLMNU_SWITCHTEXT2", "ControlMessage"
+
 	StaticText ""
-	StaticText 	"$CNTRLMNU_POPUPS", 1
 	Control    "$CNTRLMNU_MISSION" , "showpop 1"
 	Control    "$CNTRLMNU_KEYS"    , "showpop 2"
 	Control    "$CNTRLMNU_STATS"   , "showpop 3"