Are there any verions of DNN that enable access keys to be implemented? If not, is there any way of implementing access keys as an 'add on' to DotNetNuke?

I would like to use access keys too,

but I have 2 portals using the same installation and same web config, so both use the same default.aspx file
- won't  this cause a conflict ?

p.s.

I thought I had to place the access keys code inside the file which uses the menu -
e.g. -
<a href="http://www.mysite.com/" accesskey="h"><em>H</em>ome</a>

but there is no menu in default.aspx -
- so I am not sure how it would work ...?

regards,
mark.