With an icon, i think it will be easy to notice. Maybe a gear, rench or something like .uno:ControlProperties (plier crossed rench) or .uno:MoreControls (option box and check box).
Reasonable enhancement, but selection of the icons needs to be icon style aware. This is off the main menu, where there already are several icons in place: File -> New File -> Open File -> Wizards File -> Exit and on Help -> LibreOffice Help Setting new.
Created attachment 106815 [details] what the gear icon looks like Planning to use applications-system.png from tango's icon set which looks like a gear.
Created attachment 106816 [details] 3 possible icons Looking further over the tango icon set, any of the 3 icons in the attached screenshot will do, so if you have a preference, please let me know.
Patch pushed with gnome's applications-system.png - https://gerrit.libreoffice.org/12232
Yousuf Philips committed a patch related to this issue. It has been pushed to "master": http://cgit.freedesktop.org/libreoffice/core/commit/?id=1968b5aef456698b2be772cd2d40dece701639b1 fdo#80716 - Adding an icon to the Tools > Options menu entry It will be available in 4.4.0. 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.