Behavior with the old elements windows: After a formula was inserted the first '<?>' was selected. With the new elements dock the cursor is positioned behind the inserted formula. The new elements dock should also select the first '<?>' as this increases usability.
Marcos Paulo de Souza committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=9e9693b91acb747cf53f819099a78f7ed4de9f40 fdo#68877: Select "<?>" as Elements window do 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.