diff --git a/src/blockchain/wallet.js b/src/blockchain/wallet.js
index c6f7dbf..1c361db 100644
--- a/src/blockchain/wallet.js
+++ b/src/blockchain/wallet.js
@@ -156,16 +156,6 @@ export async function connectWallet(chainId) {
 }
 
 
-export async function switchChain(chainId) {
-  if (useWalletStore().chainId === chainId)
-    return
-  await window.ethereum.request({
-    "method": "wallet_switchEthereumChain",
-    "params": [{"chainId": '0x' + chainId.toString(16)}]
-  })
-}
-
-
 function discoverVaults(owner) {
   const s = useStore()
   console.log('discoverVaults', owner)
@@ -522,7 +512,67 @@ function upgradeError(e) {
   console.error('error while upgrading vault', e)
 }
 
+
 export async function upgradeVault(vault, impl) {
   pendTransaction(upgradeSender(vault, impl), upgradeError)
 }
 
+
+const _chainInfos = {
+  // Arbitrum One
+  42161: {
+    "chainId": "0xa4b1",
+    "chainName": "Arbitrum One",
+    "rpcUrls": ["https://arbitrum-mainnet.infura.io"],
+    "blockExplorerUrls": ['https://explorer.arbitrum.io'],
+    "nativeCurrency": {
+      "name": "Ethereum",
+      "symbol": "ETH",
+      "decimals": 18
+    }
+  },
+  1337: {
+    "chainId": "0x539",
+    "chainName": "Dexorder Alpha Testnet",
+    "rpcUrls": ["https://rpc.alpha.dexorder.trade"],
+    "nativeCurrency": {
+      "name": "Test Ethereum",
+      "symbol": "TETH",
+      "decimals": 18
+    }
+  },
+  31337: {
+    "chainId": "0x7a69",
+    "chainName": "Mockchain",
+    "rpcUrls": ["http://localhost:8545"],
+    "nativeCurrency": {
+      "name": "Test Ethereum",
+      "symbol": "TETH",
+      "decimals": 18
+    }
+  },
+}
+
+
+export async function switchChain(chainId) {
+  if (useWalletStore().chainId === chainId)
+    return
+  await window.ethereum.request({
+    "method": "wallet_switchEthereumChain",
+    "params": [{"chainId": '0x' + chainId.toString(16)}]
+  })
+}
+
+
+export async function addNetwork(chainId) {
+  const info = _chainInfos[chainId]
+  if (!info) {
+    console.log(`No info to add chain ${chainId}`)
+    return
+  }
+  await window.ethereum.request({
+    "method": "wallet_addEthereumChain",
+    "params": [info]
+  });
+}
+
diff --git a/src/charts/chart.js b/src/charts/chart.js
index 90d5ecd..55d8acd 100644
--- a/src/charts/chart.js
+++ b/src/charts/chart.js
@@ -26,11 +26,11 @@ function symbolChanged(symbol) {
     if (symbol===null)
         co.selectedSymbol = null
     else {
-        updateFeeDropdown()
         const info = lookupSymbol(symbol.ticker)
         symbolChangedCbs.forEach((cb) => cb(info))
         co.selectedSymbol = info
     }
+    updateFeeDropdown()
 }
 
 
@@ -109,7 +109,10 @@ export function updateFeeDropdown() {
             const [_addr, fee] = p
             return {
                 title: (fee / 10000).toFixed(2) + '%',
-                onSelect: fee === symbolItem.fee ? ()=>{} : () => selectPool(fee),
+                onSelect: ()=>{
+                    if (fee !== symbolItem.fee)
+                        selectPool(fee)
+                },
             }
         })
     }
@@ -460,7 +463,7 @@ export function deleteShapeId(id) {
     chart.removeEntity(id)
 }
 
-const MEAN_RANGE_MULTIPLIER = 10
+const MEAN_RANGE_MULTIPLIER = 3
 
 function chartMeanRange() {
     let range = 0
diff --git a/src/charts/shape.js b/src/charts/shape.js
index 8ce40ad..1d9241b 100644
--- a/src/charts/shape.js
+++ b/src/charts/shape.js
@@ -207,7 +207,7 @@ export class Shape {
     // return an object with property defaults, e.g. { "linetoolhorzline.linecolor": "#7f11e0" }
     // https://www.tradingview.com/charting-library-docs/latest/api/modules/Charting_Library#drawingoverrides
     drawingOverrides() {
-        return this.colorProps()
+        return mixin(this.colorProps(), this.creationOptions)
     }
 
     create() {
@@ -547,8 +547,8 @@ export class DLine extends Line {
         // Model
         this.model.pointA = null  // {time:..., price:...}
         this.model.pointB = null
-        this.model.extendLeft = false
-        this.model.extendRight = false
+        this.model.extendLeft = true
+        this.model.extendRight = true
 
         this.setModel(model) // call setModel at the end
     }
diff --git a/src/components/NativeRow.vue b/src/components/NativeRow.vue
index b4160a7..58b3541 100644
--- a/src/components/NativeRow.vue
+++ b/src/components/NativeRow.vue
@@ -23,7 +23,7 @@
           <v-list-subheader title="ETH"/>
           <v-list-item title="Wrap" key="wrap" value="wrap" prepend-icon="mdi-location-enter" @click="onWrap"/>
           <v-list-item title="Withdraw" key="withdraw" value="withdraw" prepend-icon="mdi-arrow-down-bold"
-                       @click="()=>onWithdraw()"/>
+                       @click="onWithdraw"/>
         </v-list>
       </v-menu>
     </td>
diff --git a/src/components/NativeWrap.vue b/src/components/NativeWrap.vue
index aeb2045..0e70af8 100644
--- a/src/components/NativeWrap.vue
+++ b/src/components/NativeWrap.vue
@@ -33,7 +33,7 @@ import {FixedNumber} from "ethers";
 const s = useStore()
 const props = defineProps(['modelValue', 'vault', 'maxAmount'])
 const emit = defineEmits(['update:modelValue'])
-const balanceFloat = computed(() => Number(props.maxAmount)/1e18)
+const balanceFloat = computed(() => Number(props.maxAmount)/1e18) // todo configurable native decimals
 const floatAmount = ref(0)
 
 function wrapNative() {
diff --git a/src/components/NeedsSigner.vue b/src/components/NeedsSigner.vue
index b640354..6343ef6 100644
--- a/src/components/NeedsSigner.vue
+++ b/src/components/NeedsSigner.vue
@@ -23,7 +23,7 @@
 
     <div v-if="status===Status.NEEDS_NETWORK">
       <v-card-text>
-        Please connect your wallet to the Arbitrum-Sepolia test network to continue.
+        Please connect your wallet to the Arbitrum One network to continue.
       </v-card-text>
     </div>
 
@@ -39,7 +39,7 @@
 <script setup>
 import {useStore} from "@/store/store";
 import {computed, ref} from "vue";
-import {connectWallet, switchChain} from "@/blockchain/wallet.js";
+import {addNetwork, connectWallet, switchChain} from "@/blockchain/wallet.js";
 import Btn from "@/components/Btn.vue";
 import Logo from "@/components/Logo.vue";
 import BetaSignin from "@/components/BetaSignin.vue";
@@ -75,6 +75,14 @@ async function connect() {
         // explicit user rejection
         return
       }
+      else if (e.code===4902) {
+        try {
+          await addNetwork(s.chainId)
+        }
+        catch (e) {
+          console.log(`Could not add network ${s.chainId}`)
+        }
+      }
       else
         console.log('switchChain() failure',e)
     }
diff --git a/src/components/SplitPane.vue b/src/components/SplitPane.vue
index 096c076..3a4b01e 100644
--- a/src/components/SplitPane.vue
+++ b/src/components/SplitPane.vue
@@ -133,7 +133,7 @@ body {
 }
 
 .top {
-  height: 68%;
+  height: 60%;
   width: 100%;
   min-height: 5em;
 }
diff --git a/src/components/Vault.vue b/src/components/Vault.vue
index 80d3a1d..ee263e3 100644
--- a/src/components/Vault.vue
+++ b/src/components/Vault.vue
@@ -11,12 +11,6 @@
       </v-card-text>
     </div>
     <div v-if="hasVault">
-<!--
-      <v-card-title>
-        Your Deposit Address {{ s.vaults.length > 1 ? '#' + (num + 1) : '' }}
-      </v-card-title> &lt;!&ndash; todo vault nicknames &ndash;&gt;
--->
-
       <v-card-subtitle class="overflow-x-hidden">
         <copy-button :text="addr">Deposit {{addr}}</copy-button>
       </v-card-subtitle>
@@ -30,12 +24,12 @@
                   everything looks good.
                 </p>
         -->
-        <p v-if="!s.mockenv">There are no funds currently in your vault.
-          <!-- todo re-enable deposit UI
-           Send tokens to the address above to fund your vault. -->
+        <p v-if="!s.mockenv">
+          There are no funds currently in your vault. Send tokens to the address above to fund your trading vault.
+        </p>
+        <p v-if="s.mockenv">
+          There are no funds currently in your vault. Use the faucet below to mint some testnet coins.
         </p>
-        <p v-if="s.mockenv">There are no funds currently in your vault. Use the faucet below to mint some testnet coins
-          into your vault.</p>
       </v-card-text>
       <v-card-item v-if="!empty">
         <v-table>
diff --git a/src/components/chart/ChartVault.vue b/src/components/chart/ChartVault.vue
index be39890..5f7f9e9 100644
--- a/src/components/chart/ChartVault.vue
+++ b/src/components/chart/ChartVault.vue
@@ -2,7 +2,7 @@
   <toolbar-pane title="Assets" icon="mdi-currency-btc">
     <needs-signer>
       <vault :owner="s.account" :num="0"/>
-      <faucet v-if="s.chainId in [1337, 31337, 421614]" variant="outlined" text="Get Free Testnet Coins!" style="width: 15em"/>
+      <faucet v-if="[1337, 31337, 421614].includes(s.chainId)" variant="outlined" text="Get Free Testnet Coins!" style="width: 15em"/>
     </needs-signer>
   </toolbar-pane>
 </template>
diff --git a/src/components/chart/DiagonalBuilder.vue b/src/components/chart/DiagonalBuilder.vue
index e446702..7fcdcd1 100644
--- a/src/components/chart/DiagonalBuilder.vue
+++ b/src/components/chart/DiagonalBuilder.vue
@@ -180,8 +180,10 @@ const endpoints = computed({
   }
 })
 
+const alignTimes = ref(true)
+
 const time1A = computed({
-  get() { return _endpoints.value[0] === null ? 0 : _endpoints.value[0][0] },
+  get() { return _endpoints.value[0] === null ? null : _endpoints.value[0][0] },
   set(v) {
     const flatline0 = _endpoints.value[0];
     update(
@@ -203,7 +205,7 @@ const price1A = computed({
 })
 
 const time1B = computed({
-  get() { return _endpoints.value[0] === null ? 0 : _endpoints.value[0][2] },
+  get() { return _endpoints.value[0] === null ? null : _endpoints.value[0][2] },
   set(v) {
     const flatline0 = _endpoints.value[0];
     update(
@@ -225,7 +227,7 @@ const price1B = computed({
 })
 
 const time2A = computed({
-  get() { return _endpoints.value[1] === null ? 0 : _endpoints.value[1][0] },
+  get() { return _endpoints.value[1] === null ? null : _endpoints.value[1][0] },
   set(v) {
     const flatline = _endpoints.value[1];
     update(
@@ -247,7 +249,7 @@ const price2A = computed({
 })
 
 const time2B = computed({
-  get() { return _endpoints.value[1] === null ? 0 : _endpoints.value[1][2] },
+  get() { return _endpoints.value[1] === null ? null : _endpoints.value[1][2] },
   set(v) {
     const flatline = _endpoints.value[1];
     update(
@@ -288,7 +290,7 @@ function setShapes(a,b) {
 }
 
 
-const _extendLeft = ref(false)
+const _extendLeft = ref(true)
 const extendLeft = computed({
   get() {return _extendLeft.value},
   set(v) {
@@ -304,7 +306,7 @@ const extendLeft = computed({
 })
 
 
-const _extendRight = ref(false)
+const _extendRight = ref(true)
 const extendRight = computed({
   get() {return _extendRight.value},
   set(v) {
diff --git a/src/components/chart/RungBuilder.vue b/src/components/chart/RungBuilder.vue
index bd0190e..d0662e0 100644
--- a/src/components/chart/RungBuilder.vue
+++ b/src/components/chart/RungBuilder.vue
@@ -7,7 +7,7 @@
       <v-text-field type="number" v-model="rungs"
                     density="compact" hide-details class="mx-1 my-2" variant="outlined"
                     label="Rungs"
-                    :color="color" :base-color="color" min="1"
+                    :color="color" :base-color="color" min="1" :max="MAX_RUNGS"
                     :disabled="rungsDisabled"
                     style="width: 4.5em;"
       />
@@ -92,6 +92,7 @@ function setEndpoints(a, b) {
   endpoints.value = [devectorize(a), devectorize(b)]
 }
 
+const MAX_RUNGS = 10 // todo remove arbitrary limit
 
 const rungs = computed({
   get() {
@@ -102,6 +103,8 @@ const rungs = computed({
       props.builder.rungs = 1
       return
     }
+    if (r>MAX_RUNGS)
+      r = MAX_RUNGS
     let [a,b] = endpoints.value
     a = vectorize(a)
     b = vectorize(b)
diff --git a/src/views/VaultView.vue b/src/views/VaultView.vue
index 3f68fd8..071dc73 100644
--- a/src/views/VaultView.vue
+++ b/src/views/VaultView.vue
@@ -3,6 +3,7 @@
     <phone-card class="maxw">
       <vault :owner="s.account" :num="0"/>
     </phone-card>
+    <div>Vault? "{{s.mockenv}}" "{{s.vault}}"</div>
     <phone-card v-if="s.mockenv && s.vault" class="maxw">
       <faucet class="mt-3"/>
     </phone-card>