diff --git a/extras/conf/SRB2Kart2.cfg b/extras/conf/SRB2Kart2.cfg
index e3898b8f9..d3c7082b7 100644
--- a/extras/conf/SRB2Kart2.cfg
+++ b/extras/conf/SRB2Kart2.cfg
@@ -2646,6 +2646,84 @@ linedeftypes
 			slopeargs = 3;
 		}
 
+		723
+		{
+			title = "Copy Backside Floor Slope from Line Tag";
+			prefix = "(723)";
+			slope = "copy";
+			slopeargs = 4;
+		}
+
+		724
+		{
+			title = "Copy Backside Ceiling Slope from Line Tag";
+			prefix = "(724)";
+			slope = "copy";
+			slopeargs = 8;
+		}
+
+		725
+		{
+			title = "Copy Backside Floor and Ceiling Slope from Line Tag";
+			prefix = "(725)";
+			slope = "copy";
+			slopeargs = 12;
+		}
+
+		730
+		{
+			title = "Copy Frontside Floor Slope to Backside";
+			prefix = "(730)";
+			slope = "copy";
+			slopeargs = 1;
+			copyslopeargs = 1;
+		}
+
+		731
+		{
+			title = "Copy Frontside Ceiling Slope to Backside";
+			prefix = "(731)";
+			slope = "copy";
+			slopeargs = 2;
+			copyslopeargs = 4;
+		}
+
+		732
+		{
+			title = "Copy Frontside Floor and Ceiling Slope to Backside";
+			prefix = "(732)";
+			slope = "copy";
+			slopeargs = 3;
+			copyslopeargs = 5;
+		}
+
+		733
+		{
+			title = "Copy Backside Floor Slope to Frontside";
+			prefix = "(733)";
+			slope = "copy";
+			slopeargs = 1;
+			copyslopeargs = 2;
+		}
+
+		734
+		{
+			title = "Copy Backside Ceiling Slope to Frontside";
+			prefix = "(734)";
+			slope = "copy";
+			slopeargs = 2;
+			copyslopeargs = 8;
+		}
+
+		735
+		{
+			title = "Copy Backside Floor and Ceiling Slope to Frontside";
+			prefix = "(735)";
+			slope = "copy";
+			slopeargs = 3;
+			copyslopeargs = 10;
+		}
+
 		777
 		{
 			title = "Slope Floor by 3 Anchors";
@@ -2674,7 +2752,7 @@ linedeftypes
 			flags2048text = "[11] No physics";
 			flags4096text = "[12] Dynamic";
 		}
-		
+
 		799
 		{
 			title = "Set Tagged Dynamic Slope Vertex to Front Sector Height";
diff --git a/src/p_setup.c b/src/p_setup.c
index dd9c589b7..3e7218007 100644
--- a/src/p_setup.c
+++ b/src/p_setup.c
@@ -3249,6 +3249,34 @@ static void P_ConvertBinaryMap(void)
 				lines[i].args[1] = tag;
 			lines[i].special = 720;
 			break;
+		case 723: //Copy back side floor slope
+		case 724: //Copy back side ceiling slope
+		case 725: //Copy back side floor and ceiling slope
+			if (lines[i].special != 724)
+				lines[i].args[2] = tag;
+			if (lines[i].special != 723)
+				lines[i].args[3] = tag;
+			lines[i].special = 720;
+			break;
+		case 730: //Copy front side floor slope to back side
+		case 731: //Copy front side ceiling slope to back side
+		case 732: //Copy front side floor and ceiling slope to back side
+			if (lines[i].special != 731)
+				lines[i].args[4] |= TMSC_FRONTTOBACKFLOOR;
+			if (lines[i].special != 730)
+				lines[i].args[4] |= TMSC_FRONTTOBACKCEILING;
+			lines[i].special = 720;
+			break;
+		case 733: //Copy back side floor slope to front side
+		case 734: //Copy back side ceiling slope to front side
+		case 735: //Copy back side floor and ceiling slope to front side
+			if (lines[i].special != 734)
+				lines[i].args[4] |= TMSC_BACKTOFRONTFLOOR;
+			if (lines[i].special != 733)
+				lines[i].args[4] |= TMSC_BACKTOFRONTCEILING;
+			lines[i].special = 720;
+			break;
+
 		case 900: //Translucent wall (10%)
 		case 901: //Translucent wall (20%)
 		case 902: //Translucent wall (30%)