Since the profiler tabs are shard specific, it would radically improve the usability to:
a) Combine the profiler events to truly have a cluster level view so you don’t need to worry about shard specific views
b) Add a drop-down to the top of the page near the title that has the various shards listed in it, selecting a different shard brings you back to the same tab, but now with the changed view.
c) Consider tweaking the URL so that rather than using a SHA in the URL, you use the shard name, making it easy to manipulate the URL to change the shard view