diff --git a/src/actionspecials.h b/src/actionspecials.h
index 4ab222b2c..9b9c38cb9 100644
--- a/src/actionspecials.h
+++ b/src/actionspecials.h
@@ -42,7 +42,7 @@ DEFINE_SPECIAL(Ceiling_LowerByValue, 40, 3, 5, 5)
 DEFINE_SPECIAL(Ceiling_RaiseByValue, 41, 3, 4, 4)
 DEFINE_SPECIAL(Ceiling_CrushAndRaise, 42, 3, 4, 4)
 DEFINE_SPECIAL(Ceiling_LowerAndCrush, 43, 3, 4, 4)
-DEFINE_SPECIAL(Ceiling_CrushStop, 44, 1, 1, 1)
+DEFINE_SPECIAL(Ceiling_CrushStop, 44, 1, 2, 2)
 DEFINE_SPECIAL(Ceiling_CrushRaiseAndStay, 45, 3, 4, 4)
 DEFINE_SPECIAL(Floor_CrushStop, 46, 1, 1, 1)
 DEFINE_SPECIAL(Ceiling_MoveToValue, 47, 3, 5, 5)
@@ -59,7 +59,7 @@ DEFINE_SPECIAL(Sector_SetPortal, 57, -1, -1, 5)
 DEFINE_SPECIAL(Sector_CopyScroller, 58, -1, -1, 2)
 DEFINE_SPECIAL(Polyobj_OR_MoveToSpot, 59, 3, 3, 3)
 DEFINE_SPECIAL(Plat_PerpetualRaise, 60, 3, 3, 3)
-DEFINE_SPECIAL(Plat_Stop, 61, 1, 1, 1)
+DEFINE_SPECIAL(Plat_Stop, 61, 1, 2, 2)
 DEFINE_SPECIAL(Plat_DownWaitUpStay, 62, 3, 3, 3)
 DEFINE_SPECIAL(Plat_DownByValue, 63, 4, 4, 4)
 DEFINE_SPECIAL(Plat_UpWaitDownStay, 64, 3, 3, 3)
diff --git a/src/compatibility.cpp b/src/compatibility.cpp
index ca5d8293c..5bb51129a 100644
--- a/src/compatibility.cpp
+++ b/src/compatibility.cpp
@@ -109,7 +109,6 @@ static FCompatOption Options[] =
 	{ "ignoreteleporttags",		BCOMPATF_BADTELEPORTERS, SLOT_BCOMPAT },
 	{ "rebuildnodes",			BCOMPATF_REBUILDNODES, SLOT_BCOMPAT },
 	{ "linkfrozenprops",		BCOMPATF_LINKFROZENPROPS, SLOT_BCOMPAT },
-	{ "disablepushwindowcheck",	BCOMPATF_NOWINDOWCHECK, SLOT_BCOMPAT },
 	{ "floatbob",				BCOMPATF_FLOATBOB, SLOT_BCOMPAT },
 	{ "noslopeid",				BCOMPATF_NOSLOPEID, SLOT_BCOMPAT },
 
@@ -149,6 +148,7 @@ static FCompatOption Options[] =
 	{ "pointonline",			COMPATF2_POINTONLINE, SLOT_COMPAT2 },
 	{ "multiexit",				COMPATF2_MULTIEXIT, SLOT_COMPAT2 },
 	{ "teleport",				COMPATF2_TELEPORT, SLOT_COMPAT2 },
+	{ "disablepushwindowcheck",	COMPATF2_PUSHWINDOW, SLOT_COMPAT2 },
 
 	{ NULL, 0, 0 }
 };
diff --git a/src/d_main.cpp b/src/d_main.cpp
index 4e360a38e..9f4568614 100644
--- a/src/d_main.cpp
+++ b/src/d_main.cpp
@@ -574,7 +574,7 @@ CUSTOM_CVAR(Int, compatmode, 0, CVAR_ARCHIVE|CVAR_NOINITCALL)
 
 	case 4: // Old ZDoom compat mode
 		v = COMPATF_SOUNDTARGET | COMPATF_LIGHT;
-		w = COMPATF2_MULTIEXIT | COMPATF2_TELEPORT;
+		w = COMPATF2_MULTIEXIT | COMPATF2_TELEPORT | COMPATF2_PUSHWINDOW;
 		break;
 
 	case 5: // MBF compat mode
@@ -631,6 +631,7 @@ CVAR (Flag, compat_soundcutoff,			compatflags2, COMPATF2_SOUNDCUTOFF);
 CVAR (Flag, compat_pointonline,			compatflags2, COMPATF2_POINTONLINE);
 CVAR (Flag, compat_multiexit,			compatflags2, COMPATF2_MULTIEXIT);
 CVAR (Flag, compat_teleport,			compatflags2, COMPATF2_TELEPORT);
+CVAR (Flag, compat_pushwindow,			compatflags2, COMPATF2_PUSHWINDOW);
 
 //==========================================================================
 //
diff --git a/src/doomdef.h b/src/doomdef.h
index a36a7a1c2..5a1d1f95f 100644
--- a/src/doomdef.h
+++ b/src/doomdef.h
@@ -342,7 +342,8 @@ enum : unsigned int
 	COMPATF2_SOUNDCUTOFF	= 1 << 2,	// Cut off sounds when an actor vanishes instead of making it owner-less
 	COMPATF2_POINTONLINE	= 1 << 3,	// Use original but buggy P_PointOnLineSide() and P_PointOnDivlineSideCompat()
 	COMPATF2_MULTIEXIT		= 1 << 4,	// Level exit can be triggered multiple times (required by Daedalus's travel tubes, thanks to a faulty script)
-	COMPATF2_TELEPORT		 = 1 << 5,	// Don't let indirect teleports trigger sector actions
+	COMPATF2_TELEPORT		= 1 << 5,	// Don't let indirect teleports trigger sector actions
+	COMPATF2_PUSHWINDOW		= 1 << 6,	// Disable the window check in CheckForPushSpecial()
 };
 
 // Emulate old bugs for select maps. These are not exposed by a cvar
@@ -356,7 +357,6 @@ enum
 	BCOMPATF_BADPORTALS			= 1 << 4,	// Restores the old unstable portal behavior
 	BCOMPATF_REBUILDNODES		= 1 << 5,	// Force node rebuild
 	BCOMPATF_LINKFROZENPROPS	= 1 << 6,	// Clearing PROP_TOTALLYFROZEN or PROP_FROZEN also clears the other
-	BCOMPATF_NOWINDOWCHECK		= 1 << 7,	// Disable the window check in CheckForPushSpecial()
 	BCOMPATF_FLOATBOB			= 1 << 8,	// Use Hexen's original method of preventing floatbobbing items from falling down
 	BCOMPATF_NOSLOPEID			= 1 << 9,	// disable line IDs on slopes.
 };
diff --git a/src/g_mapinfo.cpp b/src/g_mapinfo.cpp
index 7d3df69e0..ac1552b99 100644
--- a/src/g_mapinfo.cpp
+++ b/src/g_mapinfo.cpp
@@ -1342,6 +1342,7 @@ MapFlagHandlers[] =
 	{ "compat_pointonline",				MITYPE_COMPATFLAG, 0, COMPATF2_POINTONLINE },
 	{ "compat_multiexit",				MITYPE_COMPATFLAG, 0, COMPATF2_MULTIEXIT },
 	{ "compat_teleport",				MITYPE_COMPATFLAG, 0, COMPATF2_TELEPORT },
+	{ "compat_pushwindow",				MITYPE_COMPATFLAG, 0, COMPATF2_PUSHWINDOW },
 	{ "cd_start_track",					MITYPE_EATNEXT,	0, 0 },
 	{ "cd_end1_track",					MITYPE_EATNEXT,	0, 0 },
 	{ "cd_end2_track",					MITYPE_EATNEXT,	0, 0 },
diff --git a/src/p_ceiling.cpp b/src/p_ceiling.cpp
index c635d9743..888b67b6c 100644
--- a/src/p_ceiling.cpp
+++ b/src/p_ceiling.cpp
@@ -552,21 +552,31 @@ void P_ActivateInStasisCeiling (int tag)
 //
 //============================================================================
 
-bool EV_CeilingCrushStop (int tag)
+bool EV_CeilingCrushStop (int tag, bool remove)
 {
 	bool rtn = false;
 	DCeiling *scan;
 	TThinkerIterator<DCeiling> iterator;
 
-	while ( (scan = iterator.Next ()) )
+	scan = iterator.Next();
+	while (scan != nullptr)
 	{
+		DCeiling *next = iterator.Next();
 		if (scan->m_Tag == tag && scan->m_Direction != 0)
 		{
-			SN_StopSequence (scan->m_Sector, CHAN_CEILING);
-			scan->m_OldDirection = scan->m_Direction;
-			scan->m_Direction = 0;		// in-stasis;
+			if (!remove)
+			{
+				SN_StopSequence(scan->m_Sector, CHAN_CEILING);
+				scan->m_OldDirection = scan->m_Direction;
+				scan->m_Direction = 0;		// in-stasis;
+			}
+			else
+			{
+				scan->Destroy();
+			}
 			rtn = true;
 		}
+		scan = next;
 	}
 
 	return rtn;
diff --git a/src/p_lnspec.cpp b/src/p_lnspec.cpp
index f1eae4928..cf50a1dfa 100644
--- a/src/p_lnspec.cpp
+++ b/src/p_lnspec.cpp
@@ -689,9 +689,22 @@ FUNC(LS_Ceiling_LowerAndCrushDist)
 }
 
 FUNC(LS_Ceiling_CrushStop)
-// Ceiling_CrushStop (tag)
+// Ceiling_CrushStop (tag, remove)
 {
-	return EV_CeilingCrushStop (arg0);
+	bool remove;
+	switch (arg3)
+	{
+	case 1:
+		remove = false;
+		break;
+	case 2:
+		remove = true;
+		break;
+	default:
+		remove = gameinfo.gametype == GAME_Hexen;
+		break;
+	}
+	return EV_CeilingCrushStop (arg0, remove);
 }
 
 FUNC(LS_Ceiling_CrushRaiseAndStay)
@@ -893,9 +906,22 @@ FUNC(LS_Plat_PerpetualRaiseLip)
 }
 
 FUNC(LS_Plat_Stop)
-// Plat_Stop (tag)
+// Plat_Stop (tag, remove?)
 {
-	EV_StopPlat (arg0);
+	bool remove;
+	switch (arg3)
+	{
+	case 1:
+		remove = false;
+		break;
+	case 2:
+		remove = true;
+		break;
+	default:
+		remove = gameinfo.gametype == GAME_Hexen;
+		break;
+	}
+	EV_StopPlat(arg0, remove);
 	return true;
 }
 
diff --git a/src/p_map.cpp b/src/p_map.cpp
index ec9fea20a..278249a64 100644
--- a/src/p_map.cpp
+++ b/src/p_map.cpp
@@ -1912,7 +1912,7 @@ static void CheckForPushSpecial(line_t *line, int side, AActor *mobj, DVector2 *
 {
 	if (line->special && !(mobj->flags6 & MF6_NOTRIGGER))
 	{
-		if (posforwindowcheck && !(ib_compatflags & BCOMPATF_NOWINDOWCHECK) && line->backsector != NULL)
+		if (posforwindowcheck && !(i_compatflags2 & COMPATF2_PUSHWINDOW) && line->backsector != NULL)
 		{ // Make sure this line actually blocks us and is not a window
 			// or similar construct we are standing inside of.
 			DVector3 pos = mobj->PosRelative(line);
diff --git a/src/p_plats.cpp b/src/p_plats.cpp
index 55ba39fe5..96fec71c1 100644
--- a/src/p_plats.cpp
+++ b/src/p_plats.cpp
@@ -429,15 +429,21 @@ void DPlat::Stop ()
 	m_Status = in_stasis;
 }
 
-void EV_StopPlat (int tag)
+void EV_StopPlat (int tag, bool remove)
 {
 	DPlat *scan;
 	TThinkerIterator<DPlat> iterator;
 
-	while ( (scan = iterator.Next ()) )
+	scan = iterator.Next();
+	while (scan != nullptr)
 	{
+		DPlat *next = iterator.Next();
 		if (scan->m_Status != DPlat::in_stasis && scan->m_Tag == tag)
-			scan->Stop ();
+		{
+			if (!remove) scan->Stop();
+			else scan->Destroy();
+		}
+		scan = next;
 	}
 }
 
diff --git a/src/p_spec.h b/src/p_spec.h
index 125b2374e..d7abd4b42 100644
--- a/src/p_spec.h
+++ b/src/p_spec.h
@@ -212,13 +212,13 @@ private:
 
 	friend bool	EV_DoPlat (int tag, line_t *line, EPlatType type,
 						   double height, double speed, int delay, int lip, int change);
-	friend void EV_StopPlat (int tag);
+	friend void EV_StopPlat (int tag, bool remove);
 	friend void P_ActivateInStasis (int tag);
 };
 
 bool EV_DoPlat (int tag, line_t *line, DPlat::EPlatType type,
 				double height, double speed, int delay, int lip, int change);
-void EV_StopPlat (int tag);
+void EV_StopPlat (int tag, bool remove);
 void P_ActivateInStasis (int tag);
 
 //
@@ -434,14 +434,14 @@ private:
 	DCeiling ();
 
 	friend bool P_CreateCeiling(sector_t *sec, DCeiling::ECeiling type, line_t *line, int tag, double speed, double speed2, double height, int crush, int silent, int change, DCeiling::ECrushMode hexencrush);
-	friend bool EV_CeilingCrushStop (int tag);
+	friend bool EV_CeilingCrushStop (int tag, bool remove);
 	friend void P_ActivateInStasisCeiling (int tag);
 };
 
 bool P_CreateCeiling(sector_t *sec, DCeiling::ECeiling type, line_t *line, int tag, double speed, double speed2, double height, int crush, int silent, int change, DCeiling::ECrushMode hexencrush);
 bool EV_DoCeiling (DCeiling::ECeiling type, line_t *line, int tag, double speed, double speed2, double height, int crush, int silent, int change, DCeiling::ECrushMode hexencrush = DCeiling::ECrushMode::crushDoom);
 
-bool EV_CeilingCrushStop (int tag);
+bool EV_CeilingCrushStop (int tag, bool remove);
 void P_ActivateInStasisCeiling (int tag);
 
 
diff --git a/wadsrc/static/compatibility.txt b/wadsrc/static/compatibility.txt
index 6c4082920..d8bfefc1b 100644
--- a/wadsrc/static/compatibility.txt
+++ b/wadsrc/static/compatibility.txt
@@ -397,6 +397,7 @@ D62DCA9EC226DE49108D5DD9271F7631 // Cheogsh 2 map04
 
 E89CCC7E155F1032F693359CC219BE6C // hexen.wad map30
 B9DFF13207EACAC675C71D82624D0007 // XtheaterIII map01
+6941BDC2F80C0FEBE34EFA23D5FB72B7 // sonic.wad map10
 {
 	DisablePushWindowCheck
 }
@@ -435,6 +436,17 @@ C98F79709BD7E0E4C19026AB9575EC6F // cc-cod.zip:codlev.wad map07
 	teleport
 }
 
+8570AA0D6737C0A19DB66767764F157F // sonic.wad map04
+{
+	noslopeid
+}
+
+05AA32F1D2220A462DCDA245ED22B94B // sonic.wad map09
+{
+	polyobj
+}
+
+
 D7F6E9F08C39A17026349A04F8C0B0BE // Return to Hadron, e1m9
 19D03FFC875589E21EDBB7AB74EF4AEF // Return to Hadron, e1m9, 2016.01.03 update
 {
diff --git a/wadsrc/static/language.enu b/wadsrc/static/language.enu
index ecfdfb1f0..05347e3e2 100644
--- a/wadsrc/static/language.enu
+++ b/wadsrc/static/language.enu
@@ -2069,6 +2069,8 @@ CMPTMNU_SILENTINSTANTFLOORS	= "Inst. moving floors are not silent";
 CMPTMNU_SECTORSOUNDS		= "Sector sounds use center as source";
 CMPTMNU_SOUNDCUTOFF			= "Sounds stop when actor vanishes";
 CMPTMNU_SOUNDTARGET			= "Use original sound target handling";
+CMPTMNU_TELEPORT			= "Scripted teleports don't trigger sector actions";
+CMPTMNU_PUSHWINDOW			= "Non-blocking lines can be pushed";
 
 // Sound Options
 SNDMNU_TITLE			= "SOUND OPTIONS";
diff --git a/wadsrc/static/menudef.txt b/wadsrc/static/menudef.txt
index 69313a5d7..b0c5883fa 100644
--- a/wadsrc/static/menudef.txt
+++ b/wadsrc/static/menudef.txt
@@ -1333,6 +1333,8 @@ OptionMenu "CompatibilityOptions"
 	Option "$CMPTMNU_FLOORMOVE",					"compat_floormove", "YesNo"
 	Option "$CMPTMNU_POINTONLINE",					"compat_pointonline", "YesNo"
 	Option "$CMPTMNU_MULTIEXIT",					"compat_multiexit", "YesNo"
+	Option "$CMPTMNU_TELEPORT",						"compat_teleport", "YesNo"
+	Option "$CMPTMNU_PUSHWINDOW",					"compat_pushwindow", "YesNo"
 	
 	StaticText " "
 	StaticText "$CMPTMNU_PHYSICSBEHAVIOR",1