The menu entry → Tools → Table Selection Tool shows only the generic 'no icon found' icon, as this menu entry references the icon 'select-table' (according to ui/pageview.cpp:550). If there's a suitable icon available for this action, please change the referenced icon. Otherwise assign this to Oxygen as a missing icon request.
please had a screnshot were this icon will be shown and what the action is all about cheers
Created attachment 73631 [details] icon in the menu
Created attachment 73632 [details] Icon in the toolbar
http://docs.kde.org/stable/en/kdegraphics/okular/menutools.html explains what the tool is about if you fail to be able of opening okular and using the option yourself.
Thank you for the bug report. As this report hasn't seen any changes in 5 years or more, we ask if you can please confirm that the issue still persists. If this bug is no longer persisting or relevant please change the status to resolved.