Side button now works as Back.

driver/mouselaser/resources/input/mouselaser_profile.json

@@ -12,6 +12,7 @@
 		"/input/b" : { "type" : "button", "click" : true, "binding_image_point" : [ 50, 50 ], "order" : 3 },
 		"/input/grip" : { "type" : "button", "click" : true, "binding_image_point" : [ 50, 50 ], "order" : 4 },
 		"/input/thumbstick" : { "type" : "joystick", "touch" : true, "binding_image_point" : [ 50, 50 ], "order" : 5 },
+		"/input/back" : { "type" : "button", "click" : true, "binding_image_point" : [ 50, 50 ], "order" : 6 },
 		"/pose/raw" : { "type" : "pose", "binding_image_point" : [ 50, 50 ] },
 		"/pose/tip" : { "type" : "pose", "binding_image_point" : [ 50, 50 ] }
 	},

driver/mouselaser/resources/input/vrcompositor_bindings_mouselaser.json

@@ -4,7 +4,7 @@
 	"app_key": "openvr.component.vrcompositor",
 	"category": "steamvr_input",
 	"controller_type": "mouselaser",
-	"description": "Mouse aims the SteamVR laser. Buttons click, and the wheel acts as the thumbstick (lists and scrolling).",
+	"description": "Mouse aims the SteamVR laser. Buttons click, the back side button goes back, and the wheel acts as the thumbstick (lists and scrolling).",
 	"name": "Mouse Laser: dashboard and overlays",
 	"options": {},
 	"simulated_actions": [],
@@ -74,6 +74,24 @@
 							"output": "/actions/lasermouse/in/middleclick"
 						}
 					}
+				},
+				{
+					"path": "/user/hand/left/input/back",
+					"mode": "button",
+					"inputs": {
+						"click": {
+							"output": "/actions/lasermouse/in/back"
+						}
+					}
+				},
+				{
+					"path": "/user/hand/right/input/back",
+					"mode": "button",
+					"inputs": {
+						"click": {
+							"output": "/actions/lasermouse/in/back"
+						}
+					}
 				}
 			]
 		},