Did you ever manage to do this? I need to do the same thing but experiencing problems trying to get it to work.
I tried merging the code from product.tabbedUI.xml.config into the page.kitheader.xml.config but I keep getting the following error and can't figure out what is causing it.
Code:
Error executing child request for kitproduct.aspx.
Source:System.Web
Message:Exception of type 'System.Web.HttpUnhandledException' was thrown.
Stack Trace:
at System.Web.UI.Page.HandleError(Exception e)
at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)
at System.Web.UI.Page.ProcessRequest()
at System.Web.UI.Page.ProcessRequestWithNoAssert(HttpContext context)
at System.Web.UI.Page.ProcessRequest(HttpContext context)
at ASP.kitproduct_aspx.ProcessRequest(HttpContext context) in c:\windows\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\web\f65249c2\d46b6602\App_Web_kitproduct.aspx.cdcab7d2.kctg-mlj.0.cs:line 0
at System.Web.HttpServerUtility.ExecuteInternal(IHttpHandler handler, TextWriter writer, Boolean preserveForm, Boolean setPreviousPage, VirtualPath path, VirtualPath filePath, String physPath, Exception error, String queryStringOverride)
I am using Multistore 9.1.0.1
Thanks in advance