Special hints for MAC-LTspice MAC-LTspice doesn't have a menu-bar with all these commands. Please use the function keys. It will need a little bit exercise until you can quickly work with this function-key method. F2 Get components F3 Draw wires F4 Label net F5 Delete F6 Copy F7 Move F8 Drag F9 Undo Shift F9 Redo Spacebar Zoom to full extent s Enter Spice Directive t Enter comment Draw a wire in the direction of 45 degree: F3 Now hold the Shift-key while drawing the wire with any angle .lib name or .lib ./name Normally .lib filename works. I remember one case when I needed .lib ./filename Dialog windows for the analysis .TRAN, AC, .NOISE, .DC, .TF, .OP Press the key s to get the dialog window for SPICE-lines. Now "right mouse click" in this dialog window. Follow "Help me edit -> op Analysis command". Polarized electrolytic cap? F2 polcap There are even more nice symbols in [Misc], e. g. a European resistor symbol. F2 "Misc" -> European Resistor My personal experience. MAC-LTspice is 64bit code and runs at least as fast as the WIN version. The only drawback is the slow speed when you zoom-in or zoom-out. Mike told me that he can't improve this the next few months. I missed the toolbar at the beginning. After I exercised the Fx function keys, I am quick with this Fx method too.