diff --git a/frontend/components/CellInput.js b/frontend/components/CellInput.js
index c109ea488..236c2664c 100644
--- a/frontend/components/CellInput.js
+++ b/frontend/components/CellInput.js
@@ -61,6 +61,7 @@ import { LastFocusWasForcedEffect, tab_help_plugin } from "./CellInput/tab_help_
 import { useEventListener } from "../common/useEventListener.js"
 import { moveLineDown } from "../imports/CodemirrorPlutoSetup.js"
 import { is_mac_keyboard } from "../common/KeyboardShortcuts.js"
+import { checkboxPlugin } from "./CellInput/number_dragger_plugin.js"
 
 export const ENABLE_CM_MIXED_PARSER = window.localStorage.getItem("ENABLE_CM_MIXED_PARSER") === "true"
 export const ENABLE_CM_SPELLCHECK = window.localStorage.getItem("ENABLE_CM_SPELLCHECK") === "true"
@@ -365,12 +366,12 @@ export const CellInput = ({
                 return true
             }
 
-            const anySelect = cm.state.selection.ranges.some(r => !r.empty)
+            const anySelect = cm.state.selection.ranges.some((r) => !r.empty)
             if (anySelect) {
                 return indentMore(cm)
             } else {
-               cm.dispatch(
-                   cm.state.changeByRange(selection => ({
+                cm.dispatch(
+                    cm.state.changeByRange((selection) => ({
                         range: EditorSelection.cursor(selection.from + 1),
                         changes: { from: selection.from, to: selection.to, insert: "\t" },
                     }))
@@ -702,6 +703,12 @@ export const CellInput = ({
                     EditorView.lineWrapping,
                     awesome_line_wrapping,
 
+                    checkboxPlugin({
+                        run_cell: () => {
+                            on_submit()
+                        },
+                    }),
+
                     // Reset diagnostics on change
                     EditorView.updateListener.of((update) => {
                         if (!update.docChanged) return
diff --git a/frontend/components/CellInput/number_dragger_plugin.js b/frontend/components/CellInput/number_dragger_plugin.js
new file mode 100644
index 000000000..09c136286
--- /dev/null
+++ b/frontend/components/CellInput/number_dragger_plugin.js
@@ -0,0 +1,188 @@
+import { render } from "../../imports/Preact.js"
+import { EditorView, WidgetType, ViewUpdate, ViewPlugin, syntaxTree, Decoration } from "../../imports/CodemirrorPlutoSetup.js"
+import { has_ctrl_or_cmd_pressed } from "../../common/KeyboardShortcuts.js"
+
+class CheckboxWidget extends WidgetType {
+    checked
+
+    constructor(checked) {
+        super()
+        this.checked = checked
+    }
+
+    eq(other) {
+        return other.checked == this.checked
+    }
+
+    toDOM() {
+        let wrap = document.createElement("span")
+        wrap.setAttribute("aria-hidden", "true")
+        wrap.className = "cm-boolean-toggle"
+        let box = wrap.appendChild(document.createElement("input"))
+        box.type = "checkbox"
+        box.checked = this.checked
+        return wrap
+    }
+
+    ignoreEvent() {
+        return false
+    }
+}
+
+const magic_number_class = "magic-number-yay"
+
+/**
+ * @param {EditorView} view
+ */
+function checkboxes(view) {
+    let widgets = []
+    for (let { from, to } of view.visibleRanges) {
+        syntaxTree(view.state).iterate({
+            from,
+            to,
+            enter: (node) => {
+                if (node.name === "BooleanLiteral") {
+                    let isTrue = view.state.doc.sliceString(node.from, node.to) === "true"
+                    let deco = Decoration.replace({
+                        widget: new CheckboxWidget(isTrue),
+                        // side: 1,
+                    })
+                    widgets.push(deco.range(node.from, node.to))
+                }
+            },
+        })
+    }
+
+    for (let { from, to } of view.visibleRanges) {
+        syntaxTree(view.state).iterate({
+            from,
+            to,
+            enter: (node) => {
+                if (node.name === "Number") {
+                    let str = view.state.doc.sliceString(node.from, node.to)
+                    if (!julia_number_supported(str)) return
+                    let deco = Decoration.mark({
+                        class: magic_number_class,
+                        attributes: { "data-magic-number": "yes" },
+                    })
+                    widgets.push(deco.range(node.from, node.to))
+                }
+            },
+        })
+    }
+
+    return Decoration.set(widgets)
+}
+
+const julia_number_supported = (str) => {
+    return str.match(/^\d+(\.\d+)?$/) != null
+}
+
+const julia_string_to_number = (str) => {
+    return parseFloat(str)
+}
+
+const dragged_value = (start_string, delta) => {
+    const is_float = start_string.includes(".")
+
+    return Math.round(julia_string_to_number(start_string) + delta * 0.3).toString()
+}
+
+export const checkboxPlugin = ({ run_cell }) => {
+    let dragging = false
+    /** @type {any} */
+    let node = null
+    /** @type {PointerEvent?} */
+    let drag_start_event = null
+
+    let start_str = "3.14"
+
+    return ViewPlugin.fromClass(
+        class {
+            decorations
+
+            constructor(view) {
+                this.decorations = checkboxes(view)
+            }
+
+            update(update) {
+                if (update.docChanged || update.viewportChanged || syntaxTree(update.startState) != syntaxTree(update.state))
+                    this.decorations = checkboxes(update.view)
+            }
+        },
+        {
+            decorations: (v) => v.decorations,
+
+            eventHandlers: {
+                mousedown: (e, view) => {
+                    let target = e.target
+                    if (target instanceof HTMLElement && target.nodeName == "INPUT" && target.parentElement?.classList?.contains?.("cm-boolean-toggle"))
+                        return toggleBoolean(view, view.posAtDOM(target))
+                },
+
+                pointerdown: (e, view) => {
+                    console.log(e)
+                    if (!has_ctrl_or_cmd_pressed(e)) return
+                    const target = e.target
+                    if (!(target instanceof HTMLElement)) return
+                    const mn = target.closest(`.${magic_number_class}`)
+                    if (mn == null) return
+
+                    const pos = view.posAtDOM(mn)
+                    node = syntaxTree(view.state).resolve(pos, 1)
+                    drag_start_event = e
+
+                    start_str = view.state.doc.sliceString(node.from, node.to)
+
+                    if (!julia_number_supported(start_str)) return
+
+                    console.log({ pos, node, start_str })
+
+                    dragging = true
+                    return true
+                },
+
+                pointerup: (e, view) => {
+                    dragging = false
+                },
+
+                pointerleave: (e, view) => {
+                    dragging = false
+                },
+
+                pointermove: (e, view) => {
+                    if (!dragging || drag_start_event == null) return
+
+                    const delta = drag_start_event.clientY - e.clientY
+
+                    const new_str = dragged_value(start_str, delta)
+                    const current_str = view.state.doc.sliceString(node.from, node.to)
+                    if (new_str === current_str) return
+
+                    view.dispatch({
+                        changes: { from: node.from, to: node.to, insert: new_str },
+                    })
+                    // the string length might have changed, so we need to re-resolve the node
+                    node = syntaxTree(view.state).resolve(node.from, 1)
+
+                    // run the cell with this new code
+                    run_cell()
+                },
+            },
+        }
+    )
+}
+
+/**
+ * @param {EditorView} view
+ * @param {number} pos
+ */
+function toggleBoolean(view, pos) {
+    let before = view.state.doc.sliceString(Math.max(0, pos - 5), pos)
+    let change
+    if (before == "false") change = { from: pos - 5, to: pos, insert: "true" }
+    else if (before.endsWith("true")) change = { from: pos - 4, to: pos, insert: "false" }
+    else return false
+    view.dispatch({ changes: change })
+    return true
+}
diff --git a/frontend/components/Editor.js b/frontend/components/Editor.js
index 2afb63b4e..0aad0612e 100644
--- a/frontend/components/Editor.js
+++ b/frontend/components/Editor.js
@@ -1265,8 +1265,8 @@ all patches: ${JSON.stringify(patches, null, 1)}
         const set_ctrl_down = (value) => {
             if (value !== ctrl_down_last_val.current) {
                 ctrl_down_last_val.current = value
-                document.body.querySelectorAll("[data-pluto-variable], [data-cell-variable]").forEach((el) => {
-                    el.setAttribute("data-ctrl-down", value ? "true" : "false")
+                document.body.querySelectorAll("[data-pluto-variable], [data-cell-variable], [data-magic-number]").forEach((el) => {
+                    el.closest("pluto-cell").setAttribute("data-ctrl-down", value ? "true" : "false")
                 })
             }
         }
diff --git a/frontend/editor.css b/frontend/editor.css
index dac3fc711..e4503d885 100644
--- a/frontend/editor.css
+++ b/frontend/editor.css
@@ -3401,13 +3401,13 @@ body.disable_ui [data-pluto-variable],
 body.disable_ui [data-cell-variable] {
     cursor: pointer;
 }
-body:not(.disable_ui) [data-ctrl-down="true"][data-pluto-variable],
-body:not(.disable_ui) [data-ctrl-down="true"][data-cell-variable] {
+body:not(.disable_ui) [data-ctrl-down="true"] [data-pluto-variable],
+body:not(.disable_ui) [data-ctrl-down="true"] [data-cell-variable] {
     text-decoration-color: #d177e6;
     cursor: pointer;
 }
-body:not(.disable_ui) [data-ctrl-down="true"][data-pluto-variable]:hover,
-body:not(.disable_ui) [data-ctrl-down="true"][data-pluto-variable]:hover * {
+body:not(.disable_ui) [data-ctrl-down="true"] [data-pluto-variable]:hover,
+body:not(.disable_ui) [data-ctrl-down="true"] [data-pluto-variable]:hover * {
     /* This basically `color: #af5bc3`, but it works for emoji too!! */
     color: transparent !important;
     text-shadow: 0 0 #af5bc3;
@@ -3418,12 +3418,19 @@ body:not(.disable_ui) [data-ctrl-down="true"][data-pluto-variable]:hover * {
     /* Can give this cool styles later as well, but not for now nahhh */
     text-decoration: none;
 }
-[data-ctrl-down="true"][data-cell-variable]:hover * {
+[data-ctrl-down="true"] [data-cell-variable]:hover * {
     /* This basically `color: #af5bc3`, but it works for emoji too!! */
     color: transparent !important;
     text-shadow: 0 0 #af5bc3;
 }
 
+[data-ctrl-down="true"] [data-magic-number] {
+    cursor: ns-resize;
+    outline: 2px solid pink;
+    outline-offset: 1px;
+    border-radius: 3px;
+}
+
 .cm-tooltip.cm-tooltip-autocomplete {
     padding: 0;
     margin-left: -1.5em;