Karsten Wenzke 12 Report post Posted January 14, 2013 For Linux users only!I can't use ALT + left click to select an object in the ObjectTree!Four different solutions depending on your Linux version:1. That's a feature of your window manager. If you're on GNOME using Metacity (default WM), you can go to System > Preferences > Windows and change the "Movement Key" (this will just map it to another combination, of course).2. If you're on KDE go to "System Settings", then in the Personal section "->Desktop->Window Behavior", there will be "Window Actions". Change your setting for "Modifier Key + left Button" from "Move" to "Nothing" or change your modifier Key to Meta instead of Alt. 3. If you are using unity or Gnome 3 you can use the command line: gconftool --set --type string /apps/metacity/general/mouse_button_modifier "<Super>" 4. If you are using Debian 7 (Gnome 3) launch dconf editor go to org -> gnome -> desktop -> wm -> Preferences and edit mouse-button-modifier from "ALT" to "Super". 5. If you are using Mate (maybe on CentOS7) an easy way to change this setting is System > Control Center > Windows > Behaviour > Movement Key where there is a choice for Alt or Super key. 1 Share this post Link to post Share on other sites