Kentico way or .Net way is not really matter the one i use is this
[UIElement("CompanyOverview", "ManualOfficeList")]
[Breadcrumbs()]
[Breadcrumb(0, "general.banners", TargetUrl = "~/CMSModules/CompanyOverview/EditOffice.aspx?siteid={%siteid%}&parentobjectid={%parentobjectid%}")]
[Breadcrumb(1, "ManualOffice")]
but the CompanyOverview UI does not appear and it just showing me the >ManualOffice