VISAT, layer manager: overlay of layers is not any more possible from different products

In former versions it was possible to add overlays to an open band from any other product that fits to the area. Now it is not possible any more the only thing that works is using a band from the same product. Even if the products have the same extent and can be linked, it is not possible. The only work around is to copy the bands from one product to the other or to perform a collocation of both products. However, the possibilities in oder versions were great and should be re-activated ;o)