Step to reproduce

1. Create few siteaccesses, e.g.:

   siteaccess:
           list: [site, admin, stieaccess_long, siteaccess_very_long, siteaccess_very_vry_very_long, siteaccess_very_vry_very_long_second, siteaccess_very_vry_very_long_third, siteaccess_very_vry_very_long_fourth, siteaccess_very_vry_very_long_fifth]

2. Go to Page tab
3. Try to use More button on the siteaccess list

Actual result

There's no More button, siteaccess list is truncated.

Expected result

Siteaccesses that do not fit in bar, are hidden in list under More button.