For your ortho issues, Plant 2014 now has an Ortho Generation Settings box where your styles can be set (Project Setup/Ortho DWG Settings/Title Block and Display. Select “Setup Title Block” and then “Ortho Settings”). The Help menu article “Ortho Generation Settings dialog Box” has more on this.
http://docs.autodesk.com/PLNT3D/2014/ENU/index.html?url=filesPLNT3D/GUID-A9F0136B-5693-4C45-8FDB-0B9...
Also in 2014, you can now specify layers for ortho components
http://docs.autodesk.com/PLNT3D/2014/ENU/index.html?url=filesPLNT3D/GUID-B9DD4911-9031-4105-B1F1-A78...
Regarding your second question about dealing with a lot of various drawings, disciplines, and Revit models in Plant 3D, this is primarily a workflow issue and project setup & administration topic (and it is a big topic). Autodesk has provided several resources discussing these issues, but it is an ongoing and evolving topic in the community.
Here are some resources others have found useful:
The white paper ”How to Manage Large Projects”. https://autocad.autodesk.com/?nd=whitepapers.
AutoCAD Plant 3D 2012 Courseware Update. This is a 596-page instructional course with Chapter 5 focused on “Setting up and Administering a Plant Project” (This can also be used with 2013 & 2014)
http://autocad.autodesk.com/?nd=plant_online_help2 (Scroll down the page to find the course)
Autodesk University has material and videos from several past classes available free online. Here’s the AU website link followed by some specific recommendations for this topic.
http://au.autodesk.com/ (If this is your first time to the site, you may need to create an account).
AutoCAD Plant 3D: An Interoperable Plant Project
http://au.autodesk.com/?nd=class&session_id=10384
Structural Workflows for Autodesk Plant Design Suite Projects
http://au.autodesk.com/?nd=class&session_id=10920
Easier Plant Design Using Autodesk Plant Design Suite Ultimate 2013
http://au.autodesk.com/?nd=class&session_id=10233
I hope some of this is useful to you in your Plant 3D work.
Martin Stewart
AEC Support Specialist