diff --git a/web/gui/src/test/_karma/ev/colors/scenario.json b/web/gui/src/test/_karma/ev/colors/scenario.json
index dd17828..d5d3afe 100644
--- a/web/gui/src/test/_karma/ev/colors/scenario.json
+++ b/web/gui/src/test/_karma/ev/colors/scenario.json
@@ -7,7 +7,7 @@
     "lastAuto": 29
   },
   "description": [
-    "Press '=' to load initial events.",
-    "Press '-' to fire further events."
+    "Press 'a' to load initial events.",
+    "Press 'n' to fire further events."
   ]
 }
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_10_updInst_7_offline.json b/web/gui/src/test/_karma/ev/mojo/ev_10_updInst_7_offline.json
new file mode 100644
index 0000000..774e929
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_10_updInst_7_offline.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "222.222.222.222",
+    "ip": "222.222.222.222",
+    "online": false,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_11_updInst_6_offline.json b/web/gui/src/test/_karma/ev/mojo/ev_11_updInst_6_offline.json
new file mode 100644
index 0000000..07703af
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_11_updInst_6_offline.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "ONOS-6",
+    "ip": "192.168.224.126",
+    "online": false,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_12_updInst_5_offline.json b/web/gui/src/test/_karma/ev/mojo/ev_12_updInst_5_offline.json
new file mode 100644
index 0000000..c223350
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_12_updInst_5_offline.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "ONOS-5",
+    "ip": "192.168.56.105",
+    "online": false,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_13_updInst_4_offline.json b/web/gui/src/test/_karma/ev/mojo/ev_13_updInst_4_offline.json
new file mode 100644
index 0000000..7e2de40
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_13_updInst_4_offline.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "ONOS-4",
+    "ip": "192.168.56.104",
+    "online": false,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_14_updInst_3_offline.json b/web/gui/src/test/_karma/ev/mojo/ev_14_updInst_3_offline.json
new file mode 100644
index 0000000..923aeb8
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_14_updInst_3_offline.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "ONOS-3",
+    "ip": "192.168.56.103",
+    "online": false,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_15_updInst_2_offline.json b/web/gui/src/test/_karma/ev/mojo/ev_15_updInst_2_offline.json
new file mode 100644
index 0000000..268e60a
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_15_updInst_2_offline.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "ONOS-2",
+    "ip": "192.168.56.102",
+    "online": false,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_16_updInst_1_offline.json b/web/gui/src/test/_karma/ev/mojo/ev_16_updInst_1_offline.json
new file mode 100644
index 0000000..d56e0a4
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_16_updInst_1_offline.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "192.168.56.101",
+    "ip": "192.168.56.101",
+    "online": false,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_1_addInst_1.json b/web/gui/src/test/_karma/ev/mojo/ev_1_addInst_1.json
new file mode 100644
index 0000000..740595d
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_1_addInst_1.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "192.168.56.101",
+    "ip": "192.168.56.101",
+    "online": true,
+    "ready": true,
+    "uiAttached": true,
+    "switches": 4
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_2_addInst_2.json b/web/gui/src/test/_karma/ev/mojo/ev_2_addInst_2.json
new file mode 100644
index 0000000..0380b88b
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_2_addInst_2.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "ONOS-2",
+    "ip": "192.168.56.102",
+    "online": true,
+    "ready": true,
+    "uiAttached": false,
+    "switches": 3
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_3_addInst_3.json b/web/gui/src/test/_karma/ev/mojo/ev_3_addInst_3.json
new file mode 100644
index 0000000..093b85d
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_3_addInst_3.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "ONOS-3",
+    "ip": "192.168.56.103",
+    "online": true,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 3
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_4_addInst_4.json b/web/gui/src/test/_karma/ev/mojo/ev_4_addInst_4.json
new file mode 100644
index 0000000..fb833dc
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_4_addInst_4.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "ONOS-4",
+    "ip": "192.168.56.104",
+    "online": true,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_5_addInst_5.json b/web/gui/src/test/_karma/ev/mojo/ev_5_addInst_5.json
new file mode 100644
index 0000000..d525f39
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_5_addInst_5.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "ONOS-5",
+    "ip": "192.168.56.105",
+    "online": true,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 17
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_6_addInst_6.json b/web/gui/src/test/_karma/ev/mojo/ev_6_addInst_6.json
new file mode 100644
index 0000000..ad5888e
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_6_addInst_6.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "ONOS-6",
+    "ip": "192.168.224.126",
+    "online": true,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 0
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_7_addInst_7.json b/web/gui/src/test/_karma/ev/mojo/ev_7_addInst_7.json
new file mode 100644
index 0000000..bcc5d8e
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_7_addInst_7.json
@@ -0,0 +1,11 @@
+{
+  "event": "addInstance",
+  "payload": {
+    "id": "222.222.222.222",
+    "ip": "222.222.222.222",
+    "online": true,
+    "ready": false,
+    "uiAttached": false,
+    "switches": 6
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_8_updInst_1_noui.json b/web/gui/src/test/_karma/ev/mojo/ev_8_updInst_1_noui.json
new file mode 100644
index 0000000..4930db1
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_8_updInst_1_noui.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "192.168.56.101",
+    "ip": "192.168.56.101",
+    "online": true,
+    "ready": true,
+    "uiAttached": false,
+    "switches": 3
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/ev_9_updInst_3_ready.json b/web/gui/src/test/_karma/ev/mojo/ev_9_updInst_3_ready.json
new file mode 100644
index 0000000..272bf3d
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/ev_9_updInst_3_ready.json
@@ -0,0 +1,11 @@
+{
+  "event": "updateInstance",
+  "payload": {
+    "id": "ONOS-3",
+    "ip": "192.168.56.103",
+    "online": true,
+    "ready": true,
+    "uiAttached": true,
+    "switches": 3
+  }
+}
diff --git a/web/gui/src/test/_karma/ev/mojo/scenario.json b/web/gui/src/test/_karma/ev/mojo/scenario.json
new file mode 100644
index 0000000..a9a1e50
--- /dev/null
+++ b/web/gui/src/test/_karma/ev/mojo/scenario.json
@@ -0,0 +1,13 @@
+{
+  "comments": [
+    "Tweaking Mojo Colors"
+  ],
+  "title": "Color-Tweaking Scenario for Mojo Palette",
+  "params": {
+    "lastAuto": 7
+  },
+  "description": [
+    "Press 'a' to load initial events.",
+    "Press 'n' to fire further events."
+  ]
+}