Top, Parent and other Pages on Declare Index
Lets say we have OperatorID.pyWorkGroupList(x).pyWorkGroupManagers(x). If we just run Obj-Save on pyWorkGroupManagers - then Declare Index defined on it will fail because it is using Top keyword. And Top in this context would mean OperatorID, not pyWorkGroupList.
Way to go in this situation will be to copy pyWorkGroupList(x) to a temp page, run Obj-Save on it and then remove such page.
And better do not use Top/Parent/whatever context dependent pages in the Declare Index.