Simultaneous time delay and initial phase (and in this example, Theta or 1/(decay time) ) are supported using the spice independent sources: ![enter image description here][1] * To select and edit the parameters in the spice independent sources, please see: https://easyeda.com/forum/topic/Selecting_Sources_in_EasyEDA-oASM4mEyQ * To understand and configure the parameters in the spice independent sources please see the **EasyEDA Simulation eBook** at: https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub In particular: **Configuring Voltage and Current Sources:** https://docs.google.com/document/u/1/d/1OWZVVFRAe_2NW3WratpkA_SGuHa5AcRow5ZRfvcoVTU/pub#h.2p2csry (The Google links above are to the original copy of the Simulation eBook which you can also find at: https://easyeda.com/Doc/Simulation-eBook/ but the table of contents in the EasyEDA copy is broken and misses out some sections. We are working to fix it but in the meanwhile the copy published to the web from Google Drive works just as well.) [1]: /editor/20160512/57347472f2cd9.png