Definitelly not. I’d go the “blow up graph” way, while keeping easy way to show/hide specific node types or show only nodes that are connected directly to a specific sources.
eg :
source a
source b
view 1
view 2
source a in view 1 is rep 1
source b in view 1 is rep 2
source a in view 2 is rep 3
source b in view 2 is rep 4
full graph shows 8 nodes
sources only graph shows 2 nodes (source a, source b)
source a specific graph shows 5 nodes (source a, rep 1, rep 3, view 1, view 2)
view 1 specific graph shows 5 nodes (source a, source b, rep1, rep 2, view 1)