diff --git a/app/src/ui/Admin.tsx b/app/src/ui/Admin.tsx
index 3bb86eb..5ece794 100644
--- a/app/src/ui/Admin.tsx
+++ b/app/src/ui/Admin.tsx
@@ -45,7 +45,7 @@ function AdminInternal() {
 
    return (
       <MantineProvider {...createMantineTheme(theme as any)}>
-         <Notifications />
+         <Notifications position="top-right" />
          <FlashMessage />
          <BkndModalsProvider>
             <Routes />
diff --git a/app/src/ui/client/schema/actions.ts b/app/src/ui/client/schema/actions.ts
index a0829ff..aa64003 100644
--- a/app/src/ui/client/schema/actions.ts
+++ b/app/src/ui/client/schema/actions.ts
@@ -26,7 +26,7 @@ export function getSchemaActions({ api, setSchema, reloadSchema }: SchemaActions
          autoClose: 3000,
       };
 
-      if (res.success === true) {
+      if (res.success) {
          console.log("update config", action, module, path, res.body);
          if (res.body.success) {
             setSchema((prev) => {
diff --git a/app/src/ui/components/wouter/Link.tsx b/app/src/ui/components/wouter/Link.tsx
index 94e03c3..2d33f36 100644
--- a/app/src/ui/components/wouter/Link.tsx
+++ b/app/src/ui/components/wouter/Link.tsx
@@ -42,6 +42,11 @@ const useLocationFromRouter = (router) => {
    ];
 };
 
+export function isLinkActive(href: string, strict?: boolean) {
+   const path = window.location.pathname;
+   return strict ? path === href : path.includes(href);
+}
+
 export function Link({
    className,
    native,
diff --git a/app/src/ui/layouts/AppShell/AppShell.tsx b/app/src/ui/layouts/AppShell/AppShell.tsx
index 5281a44..1853180 100644
--- a/app/src/ui/layouts/AppShell/AppShell.tsx
+++ b/app/src/ui/layouts/AppShell/AppShell.tsx
@@ -202,7 +202,7 @@ export const SidebarLink = <E extends React.ElementType = "a">({
       <Tag
          {...otherProps}
          className={twMerge(
-            "flex flex-row px-4 py-2.5 items-center gap-2",
+            "flex flex-row px-4 items-center gap-2 h-12",
             !disabled &&
                "cursor-pointer rounded-md [&.active]:bg-primary/10 [&.active]:hover:bg-primary/15 [&.active]:font-medium hover:bg-primary/5 focus:bg-primary/5 link",
             disabled && "opacity-50 cursor-not-allowed pointer-events-none",
diff --git a/app/src/ui/lib/mantine/theme.ts b/app/src/ui/lib/mantine/theme.ts
index 13953f3..c625bcb 100644
--- a/app/src/ui/lib/mantine/theme.ts
+++ b/app/src/ui/lib/mantine/theme.ts
@@ -14,6 +14,7 @@ import {
    Textarea,
    createTheme,
 } from "@mantine/core";
+import { Notifications } from "@mantine/notifications";
 import { twMerge } from "tailwind-merge";
 
 // default: https://github.com/mantinedev/mantine/blob/master/packages/%40mantine/core/src/core/MantineProvider/default-theme.ts
@@ -126,6 +127,13 @@ export function createMantineTheme(scheme: "light" | "dark"): {
                   indicator: light ? "bg-background" : "bg-primary/15",
                }),
             }),
+            Notifications: Notifications.extend({
+               classNames: (theme, props) => {
+                  return {
+                     notification: "-top-4 -right-4",
+                  };
+               },
+            }),
          },
          primaryColor: "dark",
          primaryShade: 9,
diff --git a/app/src/ui/lib/routes.ts b/app/src/ui/lib/routes.ts
index df89d99..5c2a1b3 100644
--- a/app/src/ui/lib/routes.ts
+++ b/app/src/ui/lib/routes.ts
@@ -53,6 +53,14 @@ export function withAbsolute(url: string) {
    return `~/${basepath}/${url}`.replace(/\/+/g, "/");
 }
 
+export function useRouteNavigate() {
+   const [navigate] = useNavigate();
+
+   return (fn: (r: typeof routes) => string, options?: Parameters<typeof navigate>[1]) => {
+      navigate(fn(routes), options);
+   };
+}
+
 export function useNavigate() {
    const [location, navigate] = useLocation();
    const router = useRouter();
diff --git a/app/src/ui/modules/data/components/schema/create-modal/step.entity.fields.tsx b/app/src/ui/modules/data/components/schema/create-modal/step.entity.fields.tsx
index 7322ed8..4d5f11b 100644
--- a/app/src/ui/modules/data/components/schema/create-modal/step.entity.fields.tsx
+++ b/app/src/ui/modules/data/components/schema/create-modal/step.entity.fields.tsx
@@ -63,9 +63,10 @@ export function StepEntityFields() {
             };
          });
 
+         console.log("valid");
          nextStep("create")();
       } else {
-         console.warn("not valid");
+         console.warn("not valid", ref.current?.getErrors());
       }
    }
 
diff --git a/app/src/ui/routes/data/_data.root.tsx b/app/src/ui/routes/data/_data.root.tsx
index 40aeab8..0b7df51 100644
--- a/app/src/ui/routes/data/_data.root.tsx
+++ b/app/src/ui/routes/data/_data.root.tsx
@@ -7,18 +7,20 @@ import {
    IconPhoto,
    IconPlus,
    IconSettings,
+   IconSwitchHorizontal,
 } from "@tabler/icons-react";
 import type { Entity, TEntityType } from "data";
 import { TbDatabasePlus } from "react-icons/tb";
 import { twMerge } from "tailwind-merge";
 import { useBkndData } from "ui/client/schema/data/use-bknd-data";
+import { Button } from "ui/components/buttons/Button";
 import { IconButton } from "ui/components/buttons/IconButton";
 import { Empty } from "ui/components/display/Empty";
 import { Dropdown, type DropdownClickableChild } from "ui/components/overlay/Dropdown";
-import { Link } from "ui/components/wouter/Link";
+import { Link, isLinkActive } from "ui/components/wouter/Link";
 import { useBrowserTitle } from "ui/hooks/use-browser-title";
 import * as AppShell from "ui/layouts/AppShell/AppShell";
-import { routes, useNavigate } from "ui/lib/routes";
+import { routes, useNavigate, useRouteNavigate } from "ui/lib/routes";
 
 export function DataRoot({ children }) {
    // @todo: settings routes should be centralized
@@ -106,6 +108,7 @@ const EntityLinkList = ({
    suggestCreate = false,
 }: { entities: Entity[]; title?: string; context: "data" | "schema"; suggestCreate?: boolean }) => {
    const { $data } = useBkndData();
+   const navigate = useRouteNavigate();
    if (entities.length === 0) {
       return suggestCreate ? (
          <Empty
@@ -119,6 +122,22 @@ const EntityLinkList = ({
       ) : null;
    }
 
+   function handleClick(entity: Entity) {
+      return (e) => {
+         e.stopPropagation();
+         e.preventDefault();
+
+         switch (context) {
+            case "schema":
+               navigate((r) => r.data.entity.list(entity.name));
+               break;
+            case "data":
+               navigate((r) => r.data.schema.entity(entity.name));
+               break;
+         }
+      };
+   }
+
    return (
       <nav
          className={twMerge(
@@ -135,8 +154,22 @@ const EntityLinkList = ({
                   : routes.data.schema.entity(entity.name);
             return (
                <EntityContextMenu key={entity.name} entity={entity}>
-                  <AppShell.SidebarLink as={Link} href={href}>
+                  <AppShell.SidebarLink
+                     as={Link}
+                     href={href}
+                     className="justify-between items-center"
+                  >
                      {entity.label}
+
+                     {isLinkActive(href) && (
+                        <Button
+                           IconLeft={IconSwitchHorizontal}
+                           size="small"
+                           onClick={handleClick(entity)}
+                        >
+                           {context === "schema" ? "Data" : "Fields"}
+                        </Button>
+                     )}
                   </AppShell.SidebarLink>
                </EntityContextMenu>
             );
diff --git a/app/src/ui/routes/data/data.schema.$entity.tsx b/app/src/ui/routes/data/data.schema.$entity.tsx
index 162aedc..8b493dc 100644
--- a/app/src/ui/routes/data/data.schema.$entity.tsx
+++ b/app/src/ui/routes/data/data.schema.$entity.tsx
@@ -225,6 +225,9 @@ const Fields = ({
                      <Button size="small" onClick={() => setRes(ref.current?.getData())}>
                         data
                      </Button>
+                     <Button size="small" onClick={() => setRes(ref.current?.getErrors())}>
+                        errors
+                     </Button>
                      <Button size="small" onClick={handleUpdate}>
                         update
                      </Button>
diff --git a/app/src/ui/routes/data/forms/entity.fields.form.tsx b/app/src/ui/routes/data/forms/entity.fields.form.tsx
index 8df83d9..3826cb1 100644
--- a/app/src/ui/routes/data/forms/entity.fields.form.tsx
+++ b/app/src/ui/routes/data/forms/entity.fields.form.tsx
@@ -1,14 +1,14 @@
 import { typeboxResolver } from "@hookform/resolvers/typebox";
 import { Tabs, TextInput, Textarea, Tooltip } from "@mantine/core";
 import { useDisclosure } from "@mantine/hooks";
-import { Type } from "@sinclair/typebox";
 import {
+   Default,
    type Static,
    StringIdentifier,
+   Type,
    objectCleanEmpty,
    ucFirstAllSnakeToPascalWithSpaces,
 } from "core/utils";
-import { Entity } from "data";
 import {
    type TAppDataEntityFields,
    fieldsSchemaObject as originalFieldsSchemaObject,
@@ -31,11 +31,16 @@ import { dataFieldsUiSchema } from "../../settings/routes/data.settings";
 const fieldsSchemaObject = originalFieldsSchemaObject;
 const fieldsSchema = Type.Union(Object.values(fieldsSchemaObject));
 
-const fieldSchema = Type.Object({
-   name: StringIdentifier,
-   new: Type.Optional(Type.Boolean({ const: true })),
-   field: fieldsSchema,
-});
+const fieldSchema = Type.Object(
+   {
+      name: StringIdentifier,
+      new: Type.Optional(Type.Boolean({ const: true })),
+      field: fieldsSchema,
+   },
+   {
+      additionalProperties: false,
+   },
+);
 type TFieldSchema = Static<typeof fieldSchema>;
 
 const schema = Type.Object({
@@ -63,6 +68,7 @@ export type EntityFieldsFormRef = {
    getValues: () => TFieldsFormSchema;
    getData: () => TAppDataEntityFields;
    isValid: () => boolean;
+   getErrors: () => any;
    reset: () => void;
 };
 
@@ -117,6 +123,7 @@ export const EntityFieldsForm = forwardRef<EntityFieldsFormRef, EntityFieldsForm
             return toCleanValues(getValues());
          },
          isValid: () => isValid,
+         getErrors: () => errors,
       }));
 
       function handleAppend(_type: keyof typeof fieldsSchemaObject) {
@@ -125,7 +132,7 @@ export const EntityFieldsForm = forwardRef<EntityFieldsFormRef, EntityFieldsForm
             new: true,
             field: {
                type: _type,
-               config: {},
+               config: Default(fieldsSchemaObject[_type]?.properties.config, {}) as any,
             },
          };
          append(newField);
diff --git a/app/src/ui/routes/test/tests/mantine-test.tsx b/app/src/ui/routes/test/tests/mantine-test.tsx
index bce2801..bc2b355 100644
--- a/app/src/ui/routes/test/tests/mantine-test.tsx
+++ b/app/src/ui/routes/test/tests/mantine-test.tsx
@@ -1,5 +1,6 @@
 import { Button, Modal, Switch, Tooltip, useMantineColorScheme } from "@mantine/core";
 import { useColorScheme, useDisclosure } from "@mantine/hooks";
+import { notifications } from "@mantine/notifications";
 import { Button as AppButton } from "../../../components/buttons/Button";
 
 export default function MantineTest() {
@@ -10,6 +11,19 @@ export default function MantineTest() {
             <Button color="blue">Mantine</Button>
             <AppButton>Button</AppButton>
             <AppButton variant="primary">Button</AppButton>
+
+            <Button
+               onClick={() => {
+                  notifications.show({
+                     title: "Notification",
+                     message: "This is a notification",
+                     autoClose: false,
+                     color: "blue",
+                  });
+               }}
+            >
+               Notification
+            </Button>
          </div>
          <MantineModal />
          <MantineTooltip />