Comment 4 for bug 1418357

@Ubfan: Unfortunately, Gnome seems to have removed this option from the gnome-system-log that comes with 15.04 (there's a surprise!). I think it was already gone by 14.10, but I don't have a 14.10 installation around to check anymore. The only menu I can see is on the cog (right hand side of the title bar) and it has only Open, Close, Copy, Select All, Zoom In, Zoom Out, Normal Size, and Filters.