diff --git a/packages/engines/default/SqlDumper.js b/packages/engines/default/SqlDumper.js
index ca053967..0a2cf41e 100644
--- a/packages/engines/default/SqlDumper.js
+++ b/packages/engines/default/SqlDumper.js
@@ -33,9 +33,12 @@ class SqlDumper {
     this.putRaw("'");
   }
   putValue(value) {
-    if (_.isString(value)) this.putStringValue(value);
-    if (_.isNumber(value)) this.putRaw(value.toString());
-    if (_.isDate(value)) this.putStringValue(moment(value).toISOString());
+    if (value === null) this.putRaw('NULL');
+    if (value === true) this.putRaw('1');
+    if (value === false) this.putRaw('0');
+    else if (_.isString(value)) this.putStringValue(value);
+    else if (_.isNumber(value)) this.putRaw(value.toString());
+    else if (_.isDate(value)) this.putStringValue(moment(value).toISOString());
   }
   putCmd(format, ...args) {
     this.put(format, ...args);
@@ -77,7 +80,7 @@ class SqlDumper {
   }
   putFormattedList(c, collection) {
     if (!collection) return;
-    this.putCollection(', ', collection, item => this.putFormattedValue(c, item));
+    this.putCollection(', ', collection, (item) => this.putFormattedValue(c, item));
   }
   /** @param format {string} */
   put(format, ...args) {
@@ -198,7 +201,7 @@ class SqlDumper {
   /** @param table {import('@dbgate/types').TableInfo} */
   createTable(table) {
     this.put('^create ^table %f ( &>&n', table);
-    this.putCollection(',&n', table.columns, col => {
+    this.putCollection(',&n', table.columns, (col) => {
       this.put('%i ', col.columnName);
       this.columnDefinition(col);
     });
@@ -209,11 +212,11 @@ class SqlDumper {
       }
       this.put(
         ' ^primary ^key (%,i)',
-        table.primaryKey.columns.map(x => x.columnName)
+        table.primaryKey.columns.map((x) => x.columnName)
       );
     }
     if (table.foreignKeys) {
-      table.foreignKeys.forEach(fk => {
+      table.foreignKeys.forEach((fk) => {
         this.put(',&n');
         this.createForeignKeyFore(fk);
       });
@@ -243,9 +246,9 @@ class SqlDumper {
     if (fk.constraintName != null) this.put('^constraint %i ', fk.constraintName);
     this.put(
       '^foreign ^key (%,i) ^references %f (%,i)',
-      fk.columns.map(x => x.columnName),
+      fk.columns.map((x) => x.columnName),
       { schemaName: fk.refSchemaName, pureName: fk.refTableName },
-      fk.columns.map(x => x.refColumnName)
+      fk.columns.map((x) => x.refColumnName)
     );
     if (fk.deleteAction) this.put(' ^on ^delete %k', fk.deleteAction);
     if (fk.updateAction) this.put(' ^on ^update %k', fk.updateAction);
diff --git a/packages/web/src/datagrid/DataGridContextMenu.js b/packages/web/src/datagrid/DataGridContextMenu.js
index 9939e276..7ff2b39d 100644
--- a/packages/web/src/datagrid/DataGridContextMenu.js
+++ b/packages/web/src/datagrid/DataGridContextMenu.js
@@ -1,7 +1,14 @@
 import React from 'react';
 import { DropDownMenuItem, DropDownMenuDivider } from '../modals/DropDownMenu';
 
-export default function DataGridContextMenu({ copy, revertRowChanges, deleteSelectedRows, insertNewRow, reload }) {
+export default function DataGridContextMenu({
+  copy,
+  revertRowChanges,
+  deleteSelectedRows,
+  insertNewRow,
+  setNull,
+  reload,
+}) {
   return (
     <>
       <DropDownMenuItem onClick={reload} keyText="F5">
@@ -20,6 +27,10 @@ export default function DataGridContextMenu({ copy, revertRowChanges, deleteSele
       <DropDownMenuItem onClick={insertNewRow} keyText="Insert">
         Insert new row
       </DropDownMenuItem>
+      <DropDownMenuDivider />
+      <DropDownMenuItem onClick={setNull} keyText="Ctrl+0">
+        Set NULL
+      </DropDownMenuItem>
     </>
   );
 }
diff --git a/packages/web/src/datagrid/DataGridCore.js b/packages/web/src/datagrid/DataGridCore.js
index a555dffb..9915729e 100644
--- a/packages/web/src/datagrid/DataGridCore.js
+++ b/packages/web/src/datagrid/DataGridCore.js
@@ -530,6 +530,7 @@ export default function DataGridCore(props) {
         deleteSelectedRows={deleteSelectedRows}
         insertNewRow={insertNewRow}
         reload={() => display.reload()}
+        setNull={setNull}
       />
     );
   };
@@ -654,6 +655,22 @@ export default function DataGridCore(props) {
     setChangeSet(chs);
   }
 
+  function setNull() {
+    let chs = changeSet;
+    selectedCells.filter(isRegularCell).forEach((cell) => {
+      chs = setChangeSetValue(
+        chs,
+        display.getChangeSetField(
+          loadedAndInsertedRows[cell[0]],
+          realColumnUniqueNames[cell[1]],
+          cell[0] >= loadedRows.length ? cell[0] - loadedRows.length : null
+        ),
+        null
+      );
+    });
+    setChangeSet(chs);
+  }
+
   function copyToClipboard() {
     const rowIndexes = _.uniq(selectedCells.map((x) => x[0])).sort();
     const lines = rowIndexes.map((rowIndex) => {
@@ -844,6 +861,11 @@ export default function DataGridCore(props) {
       // this.saveAndFocus();
     }
 
+    if (event.keyCode == keycodes.n0 && event.ctrlKey) {
+      event.preventDefault();
+      setNull();
+    }
+
     if (event.keyCode == keycodes.r && event.ctrlKey) {
       event.preventDefault();
       revertRowChanges();
diff --git a/packages/web/src/datagrid/DataGridRow.js b/packages/web/src/datagrid/DataGridRow.js
index d984abd9..caa2d79d 100644
--- a/packages/web/src/datagrid/DataGridRow.js
+++ b/packages/web/src/datagrid/DataGridRow.js
@@ -68,8 +68,7 @@ const TableBodyCell = styled.td`
   `}
 
   ${(props) =>
-    props.isFocusedColumn
-     &&
+    props.isFocusedColumn &&
     `
     background-color: lightgoldenrodyellow;
   `}
@@ -123,11 +122,31 @@ const AutoFillPoint = styled.div`
   cursor: crosshair;
 `;
 
+function makeBulletString(value) {
+  return _.pad('', value.length, '•');
+}
+
+function highlightSpecialCharacters(value) {
+  value = value.replace(/\n/g, '↲');
+  value = value.replace(/\r/g, '');
+  value = value.replace(/^(\s+)/, makeBulletString);
+  value = value.replace(/(\s+)$/, makeBulletString);
+  value = value.replace(/(\s\s+)/g, makeBulletString);
+  return value;
+}
+
+const dateTimeRegex = /\d\d\d\d-\d\d-\d\dT\d\d:\d\d:\d\d(\.\d\d\d)?Z?/;
+
 function CellFormattedValue({ value }) {
   if (value == null) return <NullSpan>(NULL)</NullSpan>;
   if (_.isDate(value)) return moment(value).format('YYYY-MM-DD HH:mm:ss');
   if (value === true) return '1';
   if (value === false) return '0';
+  if (_.isNumber(value)) return value.toLocaleString();
+  if (_.isString(value)) {
+    if (dateTimeRegex.test(value)) return moment(value).format('YYYY-MM-DD HH:mm:ss');
+    return highlightSpecialCharacters(value);
+  }
   return value;
 }
 
diff --git a/packages/web/src/widgets/Splitter.js b/packages/web/src/widgets/Splitter.js
index 06de1d25..cbcf5ef9 100644
--- a/packages/web/src/widgets/Splitter.js
+++ b/packages/web/src/widgets/Splitter.js
@@ -29,14 +29,18 @@ export const VerticalSplitHandle = styled.div`
   background-color: #ccc;
   height: ${theme.splitter.thickness}px;
   cursor: row-resize;
-  z-index: 1;
+  &:hover {
+    background-color: #AAA;
+  }
 `;
 
 export const HorizontalSplitHandle = styled.div`
   background-color: #ccc;
   width: ${theme.splitter.thickness}px;
   cursor: col-resize;
-  z-index: 1;
+  &:hover {
+    background-color: #AAA;
+  }
 `;
 
 const ChildContainer1 = styled.div`
@@ -45,6 +49,7 @@ const ChildContainer1 = styled.div`
   //   flex-grow: 1;
   display: flex;
   position: relative;
+  overflow: hidden;
 `;
 
 const ChildContainer2 = styled.div`
@@ -54,6 +59,7 @@ const ChildContainer2 = styled.div`
   //   flex-grow: 1;
   display: flex;
   position: relative;
+  overflow: hidden;
 `;
 
 export function useSplitterDrag(axes, onResize) {
diff --git a/packages/web/src/widgets/ToolbarButton.js b/packages/web/src/widgets/ToolbarButton.js
index c331b9ad..0eaa6f07 100644
--- a/packages/web/src/widgets/ToolbarButton.js
+++ b/packages/web/src/widgets/ToolbarButton.js
@@ -38,6 +38,7 @@ const StyledIconSpan = styled.span`
 const ButtonDivInner = styled.div`
   position: relative;
   top: ${(props) => props.patchY}px;
+  white-space: nowrap;
 `;
 
 export default function ToolbarButton({ children, onClick, icon = undefined, disabled = undefined, patchY = 2 }) {