@bach.n.le93, Welcome to EasyEDA. 1\. Just edit the Name attribute to 100k\. Or double\-left\-click on the value in the schematic and edit the value there\. To actually enter the edited value just click anywhere on the schematic canvas outside the text box\. 2\. The easiest way to do this is to do:  **Document > New > Spice Symbol** then create a new spice symbol for it using the Spice Symbol Editor (the same way you would create a schematic symbol in the Symbol Editor) and assign the **exact** same name as the name of the  .model or .subckt to it in the **Name** attribute box. So if the spice model name is ABC123 then the attribute must be set to ABC123 (but it is not case sensitive). Then paste the spice model into the schematic and set the **text-type** attribute to **Spice**. 3\. "I want to create my input/output port \.\.\."\. Do you mean connectors or signal and power sources and loads? Please explain more about what you mean by this\. In simulation unless you are doing RF or Signal Integrity work then it is usually a waste of time simulating connectors. The most that may be needed - if at all - is to allow for the datasheet typical or maximum contact resistance per pin. For more on adding models to simulations see: [https://docs.easyeda.com/en/Simulation/Chapter14-Device-models/index.html](https://docs.easyeda.com/en/Simulation/Chapter14-Device-models/index.html) For more on the differences between simulation (active) and non-simulation (passive) schematics, please see (2) in: [https://easyeda\.com/andyfierman/Welcome\_to\_EasyEDA\-31e1288f882e49e582699b8eb7fe9b1f](https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f)

For info on adding power supplies and signal sources please see: [https://docs.easyeda.com/en/Simulation/Chapter4-Introduction-to-using-a-simulator/index.html](https://docs.easyeda.com/en/Simulation/Chapter4-Introduction-to-using-a-simulator/index.html)

Hmmm. Looking at what you're trying to simulate: [https://easyeda.com/bach.n.le93/Minisense-100-Analog-PCB](https://easyeda.com/bach.n.le93/Minisense-100-Analog-PCB) [http://www.disensors.com/downloads/products/MiniSense%20100%20Analog%20PCB_172.pdf](http://www.disensors.com/downloads/products/MiniSense%20100%20Analog%20PCB_172.pdf) I think you will need to have a careful read through all of: [https://docs.easyeda.com/en/Simulation/Headings/index.html](https://docs.easyeda.com/en/Simulation/Headings/index.html) and play with the examples. The comments in there and in (2) of: [https://easyeda\.com/andyfierman/Welcome\_to\_EasyEDA\-31e1288f882e49e582699b8eb7fe9b1f](https://easyeda.com/andyfierman/Welcome_to_EasyEDA-31e1288f882e49e582699b8eb7fe9b1f) about splitting the simulation up into different sections - such as the signal path and the SMPS - and will very much apply. You will also run into the problem that you have no spice model for the LDTC1: [https://www.mouser.co.uk/datasheet/2/418/MiniSense_100-710033.pdf](https://www.mouser.co.uk/datasheet/2/418/MiniSense_100-710033.pdf) and there is no readily available model for the XC9103 series SMPS chips: [https://www.torexsemi.com/products/step-up-dcdc-converters/series/?name=xc9103](https://www.torexsemi.com/products/step-up-dcdc-converters/series/?name=xc9103)

@andyfierman So to be sure, I usually change the resistor/capacitor's name type to Spice. As of right now, I only want to see part of the schematic to work, and the sensor's supplier (Measurement Specialty) told me the LDTC1 behaves like an ideal voltage source with a capacitor of 240pF. However, whenever I run any kind of simulation (Ctrl + R) I always get error, i.e "Error at line 4." I could not find in the simulation manual information on what is the simulation type I need to measure the output voltage probe, and how to locate such "line 4." As a visitor, are you able to check what is wrong and why I cannot simulate?