[Pharo-users] Pharo3.0 + Swap Ctrl and Alt keys

Hi all, In Pharo 2.0 i find that "Ctrl+d" would do the doIt in workspace. In Pharo3.0 for doIt, i need to do "Alt+d". 1) Is this change intentional? 2) if so am i advised to practice all the shortcuts using Alt keys instead of Ctrl key for pahro 3? 3) Any way to bring back the Ctrl/Alt swap settings (I have asked this before in stackoverflow) 4) Any one knows a hack or workaround for this? Actually i was trying to figure out point 4) but no luck till now. I changed it in keymappings builders in AbstractNautilusUI and similar places but it simply dont work. Any help is appreciated and TIA. G R Thushar