This bug is for an interface inconsistency. The Startup Center has the File menu - which is the first thing my eye went to. It has the usual "Open ..." entry, but not the "Open remote file ..." entry. (The Startup Center has the big button "Remote Files", so the functionality is available. But I went straight to the File menu and was confused for a moment.) Tested in Version: 5.1.0.0.alpha1+ Build ID: f08d0142afbcb45c12604988022bb3da18be1d84 built from source on Xubuntu 14.04.
Samuel Mehrbrodt committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=1d6480d5c4bc3e37445887b41b810aab613e6990 tdf#95931 Add 'Open remote file' to menu in start center It will be available in 5.1.0. The patch should be included in the daily builds available at http://dev-builds.libreoffice.org/daily/ in the next 24-48 hours. More information about daily builds can be found at: http://wiki.documentfoundation.org/Testing_Daily_Builds Affected users are encouraged to test the fix and report feedback.
Thanks for the report, and please let us know if you find more of these inconsistencies!