Update to tab

Textmate.xml

<?xml version="1.0" encoding="UTF-8"?>
<keymap version="1" name="TextMate" parent="Mac OS X 10.5+">
  <action id="$Delete">
    <keyboard-shortcut first-keystroke="DELETE" />
  </action>
  <action id="Back">
    <keyboard-shortcut first-keystroke="meta alt LEFT" />
    <mouse-shortcut keystroke="button4" />
  </action>
  <action id="Console.Jpa.GenerateSql" />
  <action id="Console.TableResult.NavigateAction">
    <keyboard-shortcut first-keystroke="F4" />
  </action>
  <action id="DatabaseView.CloseConnectionAction">
    <keyboard-shortcut first-keystroke="BACK_SPACE" />
  </action>
  <action id="Debug" />
  <action id="DomCollectionControl.Edit">
    <keyboard-shortcut first-keystroke="F4" />
  </action>
  <action id="DomCollectionControl.Remove">
    <keyboard-shortcut first-keystroke="BACK_SPACE" />
  </action>
  <action id="DomElementsTreeView.DeleteElement">
    <keyboard-shortcut first-keystroke="BACK_SPACE" />
  </action>
  <action id="DomElementsTreeView.GotoDomElementDeclarationAction">
    <keyboard-shortcut first-keystroke="F4" />
  </action>
  <action id="EditSource">
    <keyboard-shortcut first-keystroke="F4" />
  </action>
  <action id="Editor Delete">
    <keyboard-shortcut first-keystroke="DELETE" />
  </action>
  <action id="EditorChooseLookupItemReplace" />
  <action id="EditorCodeBlockEnd">
    <keyboard-shortcut first-keystroke="control CLOSE_BRACKET" />
    <keyboard-shortcut first-keystroke="control E" />
  </action>
  <action id="EditorCodeBlockEndWithSelection">
    <keyboard-shortcut first-keystroke="shift control CLOSE_BRACKET" />
    <keyboard-shortcut first-keystroke="shift control E" />
  </action>
  <action id="EditorCodeBlockStart">
    <keyboard-shortcut first-keystroke="control OPEN_BRACKET" />
    <keyboard-shortcut first-keystroke="control A" />
  </action>
  <action id="EditorCodeBlockStartWithSelection">
    <keyboard-shortcut first-keystroke="shift control OPEN_BRACKET" />
    <keyboard-shortcut first-keystroke="shift control A" />
  </action>
  <action id="EditorCutLineEnd" />
  <action id="EditorDelete">
    <keyboard-shortcut first-keystroke="DELETE" />
  </action>
  <action id="EditorDeleteLine">
    <keyboard-shortcut first-keystroke="meta Y" />
  </action>
  <action id="EditorDown">
    <keyboard-shortcut first-keystroke="DOWN" />
  </action>
  <action id="EditorDuplicate">
    <keyboard-shortcut first-keystroke="shift control D" />
  </action>
  <action id="EditorIndentSelection">
    <keyboard-shortcut first-keystroke="meta CLOSE_BRACKET" />
    <keyboard-shortcut first-keystroke="TAB" />
  </action>
  <action id="EditorLeft">
    <keyboard-shortcut first-keystroke="LEFT" />
  </action>
  <action id="EditorLineEnd">
    <keyboard-shortcut first-keystroke="meta RIGHT" />
  </action>
  <action id="EditorLineStart">
    <keyboard-shortcut first-keystroke="meta LEFT" />
  </action>
  <action id="EditorRight">
    <keyboard-shortcut first-keystroke="RIGHT" />
  </action>
  <action id="EditorScrollDown">
    <keyboard-shortcut first-keystroke="meta DOWN" />
  </action>
  <action id="EditorScrollUp">
    <keyboard-shortcut first-keystroke="meta UP" />
  </action>
  <action id="EditorSelectLine">
    <keyboard-shortcut first-keystroke="shift meta L" />
  </action>
  <action id="EditorSelectWord">
    <keyboard-shortcut first-keystroke="control W" />
  </action>
  <action id="EditorTab">
    <keyboard-shortcut first-keystroke="meta CLOSE_BRACKET" />
    <keyboard-shortcut first-keystroke="TAB" />
  </action>
  <action id="EditorToggleCase">
    <keyboard-shortcut first-keystroke="shift control U" />
  </action>
  <action id="EditorUnSelectWord">
    <keyboard-shortcut first-keystroke="shift control W" />
  </action>
  <action id="EditorUnindentSelection">
    <keyboard-shortcut first-keystroke="meta OPEN_BRACKET" />
  </action>
  <action id="Forward">
    <keyboard-shortcut first-keystroke="meta alt RIGHT" />
    <mouse-shortcut keystroke="button5" />
  </action>
  <action id="Graph.Delete">
    <keyboard-shortcut first-keystroke="BACK_SPACE" />
  </action>
  <action id="Jdbc.OpenTableEditor">
    <keyboard-shortcut first-keystroke="F4" />
  </action>
  <action id="NextParameter" />
  <action id="NextTemplateParameter" />
  <action id="NextTemplateVariable">
    <keyboard-shortcut first-keystroke="ENTER" />
  </action>
  <action id="RemoteHostView.EditSource">
    <keyboard-shortcut first-keystroke="F4" />
  </action>
  <action id="RemoveFromFavorites" />
  <action id="ShowNavBar">
    <keyboard-shortcut first-keystroke="alt HOME" />
  </action>
  <action id="UsageView.Exclude">
    <keyboard-shortcut first-keystroke="BACK_SPACE" />
  </action>
</keymap>

A RubyMine KeyMap was brought to my attention here https://gist.github.com/zolotov/03889f5baf286b03b2f0

Mine was manually created and only covers the editing commands, Give this one a try as well.