as for the pin 4 and 11 , eagle is neglected them as they are the vcc and gnd .
i recommend something else to you , you can instead of adding this opamp from the library ....better to add a full ic package with 8 pin or 20 pin or what you need.
go to ic pagakge in the library and add your required layout ..... it will be so easy to work with this .
i know how to solve your current problem and to show he 11 and 4 pin but it's not easy and sometimes problems occured.
you asked how to make a single layout and to stop the top one :
go to the DRC button at the toolbar and in the dialogue you have to specify your wire distance and tolelarnce and other specifications.
after that close it and go to the button AUTO ,in the dialogue , you will find TOP and Bottom , open the top scrollbar and select NONE , then it will never do top layer again ,
ask me if you have further problems
and try to nest your component places , do not put and leave like that .
FARAG