Coming from the Civil 3D side, if you were around during the Land Desktop Years, InRoads (along with GEOPAK and MX) are all Civil/Site platforms that are the precursors of Open Roads.
Unlike Autodesk, Bentley decided to implement a gradual migration from its 3 "native" programs to a unified platform called Open Roads. As they updated those three platforms, they added tools and capabilities. In most instances, these additions were actually migrated from one of the three platforms to the other two. For example, the template editor and corridor tools originated in InRoads as its Roadway Designer. The tools that are part of Civil Cells probably have their origins in the MX Roundabout tool. And the general site modeling originated with the GEOPAK Site Modeler. The Civil Geometry tools also seem to resemble many of the GEOPAK Civil geometry tools.
This version is still a hybrid of native platform - in your case (Power) InRoads and Open Roads. When you use the tools within the non-InRoads task menus, you are using Open Roads. If you use the InRoads Explorer or InRoads Task tools, you are using InRoads. And certain workflows actually create native geometry files while using Open Roads tools.
To create the profile view used for plan sheet preparation are only available in the native platforms. Cross Sections or integrated into the Open Roads tools.