Context

When working with P&ID diagram in 3DEXP, your P&ID definition is a logical reference that contains sheets and component object. These components are represented into the sheet

 you want to ensure/ check that the objects that are represented into you Sheet/view are

• open in session and part of the Parent P&ID of the sheet
• still existing in databased but object is beyonging to another P&ID (Logical Reference) 
• deleted from database

Following option is controling this 

Video