diff --git a/app/blocks/math/round.js b/app/blocks/math/round.js
index aeebf28..379add1 100644
--- a/app/blocks/math/round.js
+++ b/app/blocks/math/round.js
@@ -20,17 +20,13 @@ export default {
 
   fields: {
     OPERATION: {
-      description: `
-        Round: rounds up if .5 or higher, down otherwise
-        Floor: rounds down
-        Ceiling: rounds up
-      `,
-      bytecodeProperty: "operation",
+      description: "Select which rounding operation to perform on the input:",
       options: [
-        ["Round", "round"],
-        ["Floor", "floor"],
-        ["Ceiling", "ceiling"],
-      ]
+        ["Round", "round", "if .5 or higher: round up; otherwise round down"],
+        ["Floor", "floor", "rounds down"],
+        ["Ceiling", "ceiling", "rounds up"],
+      ],
+      bytecodeProperty: "operation",
     }
   },
 
diff --git a/docs/.vitepress/config.js b/docs/.vitepress/config.js
index dc5d88b..e4f7eb7 100644
--- a/docs/.vitepress/config.js
+++ b/docs/.vitepress/config.js
@@ -39,15 +39,42 @@ export default defineConfig({
     },
 
     nav: [
+      { text: '🪏', link: '/sandbox' },
       { text: 'Home', link: '/' },
       { text: 'Getting Started', link: '/getting-started' },
       { text: 'The Blocks', link: '/block-index' },
       { text: 'Examples', link: '/automation-examples' }
     ],
 
-    sidebar: [
-      blocksSidebar
-    ],
+    sidebar: {
+      // covers /blocks/* and /block-index
+      "/block": [ blocksSidebar ],
+
+      // devtools for the sandbox
+      "/sandbox": [
+        {
+          "text": "Tools",
+          "items": [
+            {
+              "text": "Custom Feed Names",
+              "link": "#"
+            },
+            {
+              "text": "Weather Locations",
+              "link": "#"
+            },
+            {
+              "text": "IO Bytecode Explorer",
+              "link": "#"
+            },
+            {
+              "text": "Blockly JSON Explorer",
+              "link": "#"
+            },
+          ]
+        }
+      ],
+    },
 
     socialLinks: [
       { icon: 'github', link: REPO }
diff --git a/docs/components/blockly_workspace.vue b/docs/components/blockly_workspace.vue
index 519e490..bc09c35 100644
--- a/docs/components/blockly_workspace.vue
+++ b/docs/components/blockly_workspace.vue
@@ -1,33 +1,42 @@
 <script setup>
   import { onMounted, onUnmounted } from 'vue'
   import { dispose, inject } from "../blockly/blockly_app.js"
+  import initialWorkspace from "../blockly/workspace.json"
 
   const
-    props = defineProps(['block'])
+    { block, width="100%", height="200px", toolbox=true } = defineProps(
+      ['block', 'width', 'height', 'toolbox']
+    ),
+    injectOptions = {},
+    options = {
+      injectOptions,
+      workspaceJson: block
+        ? {
+            "blocks": {
+              "languageVersion": 0,
+              "blocks": [
+                {
+                  "type": block,
+                  "deletable": false,
+                  "x": 50,
+                  "y": 50
+                }
+              ]
+            }
+          }
+        : initialWorkspace
+    }
+
+  if(!toolbox) {
+    injectOptions.toolbox = false
+  }
 
   onMounted(() => {
-    console.log('mounted, block:', props.block)
-    inject("blocklyDiv", {
-      injectOptions: { toolbox: false },
-      workspaceJson: {
-        "blocks": {
-          "languageVersion": 0,
-          "blocks": [
-            {
-              "type": props.block,
-              "deletable": false,
-              "x": 50,
-              "y": 50
-            }
-          ]
-        }
-      }
-    })
+    inject("blocklyDiv", options)
   })
 
+  // clear workspace
   onUnmounted(() => {
-    console.log('unmounted')
-    // clear workspace
     dispose()
   })
 </script>
@@ -38,8 +47,10 @@
 
 <style>
   div#blocklyDiv {
-    width: 100%;
-    height: 200px;
+    /* width: 100%; */
+    width: v-bind(width);
+    /* height: 200px; */
+    height: v-bind(height);
 
     .injectionDiv {
       border-radius: 5px;
diff --git a/docs/sandbox.md b/docs/sandbox.md
new file mode 100644
index 0000000..6ae2422
--- /dev/null
+++ b/docs/sandbox.md
@@ -0,0 +1,9 @@
+---
+title: Blockly Sandbox
+# layout: page
+aside: false
+---
+
+# Time to Play!
+
+<BlocklyWorkspace height="800px" />
diff --git a/export_documentation.js b/export_documentation.js
index d0e6098..5b24627 100644
--- a/export_documentation.js
+++ b/export_documentation.js
@@ -1,6 +1,6 @@
 import { capitalize, find, forEach, map } from 'lodash-es'
 
-import { cleanDir, copyDir, write, totalBytesWritten } from "./export_util.js"
+import { cleanDir, write, totalBytesWritten } from "./export_util.js"
 import DefinitionSet from '#src/definition_set.js'
 import toBlockMarkdown from "#src/docs/render_block.js"
 
@@ -11,24 +11,25 @@ const startTime = Date.now()
 console.log("\nStarting Documentation Export")
 console.log("=======================")
 
+const definitionSet = await DefinitionSet.load()
+
 cleanDir("docs/blockly")
-// TODO: instead, export exactly what we need
-copyDir("export", "docs/blockly")
+definitionSet.export({ to: "docs/blockly" })
 
 cleanDir("docs/blocks")
 
-const definitionSet = await DefinitionSet.load()
-const categories = definitionSet.getCategories()
+const
+  categories = definitionSet.getCategories(),
 
-// INIT SIDEBAR
-const blockSidebar = {
-  text: 'Blocks',
-  items: map(categories, ({ name }) => ({
-    text: name,
-    collapsed: true,
-    items: []
-  }))
-}
+  // INIT SIDEBAR
+  blockSidebar = {
+    text: 'Blocks',
+    items: map(categories, ({ name }) => ({
+      text: name,
+      collapsed: true,
+      items: []
+    }))
+  }
 
 forEach(definitionSet.blocks, blockDefinition => {
   // skip disabled blocks
@@ -36,9 +37,10 @@ forEach(definitionSet.blocks, blockDefinition => {
 
   // mirror the blocks/**/*.js path structure
   const docPath = blockDefinition.definitionPath.replace(/.js$/, '.md')
-  write(`docs/blocks/${docPath}`, toBlockMarkdown(blockDefinition)) // EXPORT MARKDOWN
+  // DEDICATED DOC PAGE FOR BLOCK
+  write(`docs/blocks/${docPath}`, toBlockMarkdown(blockDefinition))
 
-  // APPEND TO SIDEBAR
+  // BLOCK SIDEBAR ITEM
   const
     blockSidebarPath = `/blocks/${docPath.slice(0, -3)}`,
     sidebarEntry = {
@@ -55,6 +57,7 @@ forEach(definitionSet.blocks, blockDefinition => {
       throw new Error(`Block category (${ category.name }) not present in sidebar!`)
     }
 
+    // ADD TO SIDEBAR
     sidebarCategory.items.push(sidebarEntry)
   })
 })
diff --git a/src/block_definition.js b/src/block_definition.js
index 5ed45de..c102805 100644
--- a/src/block_definition.js
+++ b/src/block_definition.js
@@ -1,25 +1,9 @@
-import { capitalize, filter, invokeMap, map } from 'lodash-es'
+import { capitalize, filter, invokeMap } from 'lodash-es'
 
 import { toBlockJSON } from '#src/importer/block_processor/index.js'
+import { niceTemplate } from '#src/util.js'
 
 
-const niceTemplate = tplString => {
-  const
-    lines = tplString.split("\n"),
-    firstLineBlank = /^\s*$/.test(lines[0]),
-    remainingLines = lines.slice(1, -1),
-    indentCounts = map(remainingLines, line => line.search(/\S/)),
-    firstLineLeastIndented = indentCounts[0] >= Math.min(...indentCounts.slice(1, -1))
-
-  // ensure first line is blank and every other line has at least as much whitespace as the first line
-  if(firstLineBlank && firstLineLeastIndented) {
-    // drop the first line, remove X whitespace chars from the rest and join with newline
-    return map(remainingLines, line => line.slice(indentCounts[0])).join("\n")
-  }
-
-  return tplString
-}
-
 class BlockDefinition {
   definitionSet = null
 
diff --git a/src/docs/render_block.js b/src/docs/render_block.js
index d2c659b..14814b9 100644
--- a/src/docs/render_block.js
+++ b/src/docs/render_block.js
@@ -16,7 +16,7 @@ const
   },
 
   renderWorkspace = definition => {
-    return `<BlocklyWorkspace block="${ definition.type }" />`
+    return `<BlocklyWorkspace :toolbox="false" block="${ definition.type }" />`
   },
 
   renderOutput = definition => {
diff --git a/src/docs/render_block_fields.js b/src/docs/render_block_fields.js
index f7c9969..f8d52c2 100644
--- a/src/docs/render_block_fields.js
+++ b/src/docs/render_block_fields.js
@@ -1,11 +1,18 @@
-import { capitalize, filter, isArray, isObject, isString, map } from 'lodash-es'
+import { capitalize, filter, isArray, isObject, isString, map, mapValues, values } from 'lodash-es'
+
+import { niceTemplate } from '#src/util.js'
 
 
 const
   getLineObjects = definition => filter(map(filter(definition.lines, isArray), "[1]"), isObject),
 
   renderFields = definition => {
-    const fields = filter(getLineObjects(definition), "field")
+    const fields = filter(getLineObjects(definition), "field").concat(
+      values(mapValues(definition.fields, (newField, name) => {
+        newField.field = name
+        return newField
+      }))
+    )
 
     if(!fields.length) { return "This block has no form fields." }
 
@@ -16,9 +23,10 @@ const
     const lines = []
 
     // title for this field
-    lines.push(`### Field: \`${capitalize(field.field)}\``)
+    lines.push(`### \`${capitalize(field.field)}\`:`)
 
     // add lines based on what properties are present
+    Object.hasOwn(field, 'description') && lines.push(niceTemplate(field.description).replaceAll("\n", "\n\n"))
     Object.hasOwn(field, 'text') && lines.push(renderTextField(field))
     Object.hasOwn(field, 'checked') && lines.push(renderCheckboxField(field))
     Object.hasOwn(field, 'options') && lines.push(renderSelectField(field))
@@ -32,10 +40,12 @@ const
 
   renderSelectField = selectField => {
     const
-      optionLabels = map(selectField.options, 0),
-      optionList = map(optionLabels, label => `  - ${label}`).join("\n")
+      optionList = map(selectField.options, ([ label, , doc ]) => doc
+        ? `- \`${label}\`: ${doc}`
+        : `- \`${label}\``
+      ).join("\n")
 
-    return `- Options:\n${optionList}`
+    return optionList
   }
 
 
diff --git a/src/util.js b/src/util.js
new file mode 100644
index 0000000..a04f29b
--- /dev/null
+++ b/src/util.js
@@ -0,0 +1,20 @@
+import { map } from 'lodash-es'
+
+
+export const
+  niceTemplate = tplString => {
+    const
+      lines = tplString.split("\n"),
+      firstLineBlank = /^\s*$/.test(lines[0]),
+      remainingLines = lines.slice(1, -1),
+      indentCounts = map(remainingLines, line => line.search(/\S/)),
+      firstLineLeastIndented = indentCounts[0] >= Math.min(...indentCounts.slice(1, -1))
+
+    // ensure first line is blank and every other line has at least as much whitespace as the first line
+    if(firstLineBlank && firstLineLeastIndented) {
+      // drop the first line, remove X whitespace chars from the rest and join with newline
+      return map(remainingLines, line => line.slice(indentCounts[0])).join("\n")
+    }
+
+    return tplString
+  }