Links in Quotation Management

Hi,

I have a requirement where I need to add a new custom link in the Quotation Management work center in IC Role. When clicking this link this needs to load a custom view in another component.

I am able to add the link and bring the view but when I click my custom link all the other links disappears. the same links appear when i click on standard links such as  "Summary  |  Quotation Data  |  Product  |  Service Location".

Please see the screen shots below

Shows the links with views.

The Additional Site Details is the new link(custom) when clicked the entrie link line is getting disappeared.

Kindly help.

Regards,

Aruljothi A