C# - Handle Tab Key Press Outside Of AjaxControlToolkit HTMLEditor?

I have 4 HTMLEditor controls from the AjaxControlToolkit on the same page. I love everything the control does except for how it handles the tab key. I want the user to be able to tab from one HTMLEditor to another instead of insert tabs into the content in the HTMLEditor. If possible I would want to be able to tab between HTMLEditors and other controls, but if the fix will only work between HTMLEditors I can make that work in this instance.

I have also tried both the SuppressTabInDesignMode and IgnoreTab and neither seems to do anything

EDIT: Here is some code that I am trying and is not working. I have tried a few combinations of the two tags mentioned above, but none of these examples ignores tab key presses. I redownloaded the ajaxcontroltoolkit to make sure it is up to date.

<asp:ScriptManager runat="server"></asp:ScriptManager>
<HTMLEditor:Editor ID="Editor0" runat="server" TabIndex="1" IgnoreTab="false" SuppressTabInDesignMode="true" Height="200" />
<HTMLEditor:Editor ID="Editor1" runat="server" TabIndex="2" IgnoreTab="false" SuppressTabInDesignMode="false" Height="200" />
<HTMLEditor:Editor ID="Editor2" runat="server" TabIndex="3" IgnoreTab="true" SuppressTabInDesignMode="true" Height="200" />
<asp:Button ID="btnTester" runat="server" Text="testing tab" TabIndex="4" />

Drop that code into an ASPX page with the following two lines at the top of the page

<%@ Register
Assembly="AjaxControlToolkit"
Namespace="AjaxControlToolkit"
TagPrefix="ajaxToolkit" %>
<%@ Register
Assembly="AjaxControlToolkit"
Namespace="AjaxControlToolkit.HTMLEditor"
TagPrefix="HTMLEditor" %>