Hi,
Our menu can automatically renders a sub menu into the target frame, but the sub menu itself can only be associated to one frame. In order to have a sub menu to span across multiple frames, you will need to have a single parent frame that hosts both child frames and then target the sub menu into the single parent frame. This is usually done by using iframe. It will be something like this:
index.aspx:
Code: HTML/ASPX
<frameset>
<frame src="top.aspx" />
<frame src="bottom_frame.html" />
</frameset>
bottom_frame.html:
Code: HTML/ASPX
<body>
<iframe src="bottom.aspx" />
</body>
bottom.aspx:
Code: HTML/ASPX
<frameset>
<frame src="left.aspx" />
<frame src="right.aspx" />
</frameset>
This way the sub menu is targeted to "bottom_frame", instead of either "left" or "right". Since "bottom_frame" holds both "left" and "right", a sub menu associated to the bottom frame should be able to span across both "left" and "right" frames.
Thanks