Hi Frederick, Welcome to EasyEDA. You can either simply combine the existing 2 input primitives to make a 3 or more input gate or I have made some additional devices for EasyEDA which include 3 input gates. Please see: [An EasyEDA logic family] [An EasyEDA logic family]:https://easyeda.com/project_view_An-EasyEDA-logic-family_t3Xf8qI0U.htm and, if you want to run simulations with these gates please also see: [How to make the new EasyEDA logic family work in simulations.] [How to make the new EasyEDA logic family work in simulations.]:https://docs.google.com/document/d/1d7SfeXzh087HtxVy2XpFu9DDDc3kqxhIoz2MvhYOAA0/pub to see how to copy the models into your My Parts library. Sorry it's a bit clunky but we are working on ways to improve the spice model library searching and symbol to model association. :) If you haven't see it already you might also like to have a look at this: [How to use logic gates via Xspice] [How to use logic gates via Xspice]:https://easyeda.com/file_view_How-to-use-logic-gates-via-Xspice_GSM4mEWew.htm to see how to use the default gates in EasyEDA in simulations.