I found the following in $SPLUNK_HOME/etc/users//user-prefs/local/user-prefs.conf of Splunk 6.2.1:
eaiapponly = False
eairesultsper_page = 100
What do they do? There doesn't seem to be any documentation.
eairesultsperpage = 100 -> tells the number of results. if you go to e.g. settings/all configurations, it will show you 100 items each page.
eaiapp_only = False -> I don't know