Details
The "All Sites" scope option is not allowed to be selected in the Where Used dialog when performing where used operations against Insight/SharePoint managed data.
Solution
You need to open Solid Edge Options -> Manage page and select the "Scopes" button. Then you can check the "All Sites" box. After this the "All Sites" scope should be available in the Where Used function.
Hardware/Software Configuration
Platform: INTL64
OS: window
OS Version: 764SP1
Product: SOLID_EDGE
Application: DOC_MANAGEMENT
Version: V110MP9
Function: INSIGHT
Ref: 002-8008509