I can't trend external campaign click thrus!!

For now, we have to enable marketing channel reports, then go in and configure each channels.  Once marketing channel is enabled, why not automatically create some basic channels for user, Search, Internal, Referring domains, Directs, Campaign(using tracking code). User can tweak the configurations,...

I want to see if there is a correlation between events over time from a high level perspective, the ups of an event leads to down of another.  We can trend custom event one at a time, can we trend multiple events all at once on the same graph? It shouldn't be that difficult, please make it happen.