Oleg merged for 5.6.1 release,..setting to Post. SHA 8dde32215da5281f3700f484ff4523090366cc8a
Verified on 5.6.1.0 button disabled when there are no events
Since the problem described in this bug report should be resolved in a recent advisory, it has been closed with a resolution of ERRATA. For information on the advisory, and where to find the updated files, follow the link below. If the solution does not work for you, open a new bug report. https://rhn.redhat.com/errata/RHSA-2016-1634.html