deepNetworkDesigner: autoscrolling, connection preservation, undoing, and landscaping

I am encountering several issues with deepNetworkDesigner.

(1) I have a large network whose layers do not fit entirely on one screen, or at least not at a magnification level that allows me to easily see, distinguish, and manipulate the layers. How do I connect one layer to a second layer that is off-screen? When I try to drag a connection wire toward the destination layer, the pane does not autoscroll to let me reach it.

(2) I have one layer A that fans out to many output layers C1,C2,...,CN. I now wish to replace A with a different layer. Is there a way to do that, without having to tediously and manually reconnect the N outputs? Similarly, what if I wish to insert a layer B, so that A now feeds only to B but it is B that fans out to C1,C2,C3,...CN. Again, can this be done without breaking all N connections and having to manually redraw them?

(3) Is there a way to undo a change to a network (something like Ctrl-Z)?

(4) Is there a way to reorient the pane so the network flows left to right, instead of top to bottom (something like a landscape mode, rather than portrait).