Hi, this definitely feasible, but not out of the box.
Starting point would always be the detailed drawing (obviously).
Assign all connectors to a layer (eg DetailConn)
Find all containers in the drawing, then all shapes. Build a simple array of the form (shape, container).
Iterate through all connectors again and for each find, add a row in a new connector array (eg arOverviewConn = (parent 1, parent 2)). Don't add a row, if the couple exists already.
Create a new connector for each row in arOverviewConn and assign the overview layer to it (eg overviewLayer).
Now there are different possibilities to switch between one layer and another.
A simple way, would be to implement it in the shapesheet of the page.
HTH,
Y.