In the "Equivalent Circuit Analysis - Set Terminals" tab, the Voltage terminals and the Ground Terminals of the Transmitter and Receiver need to be defined
Those terminals represent the electrical connection of the Sensor to the Controller. A Source/Voltage terminal is connected to a Pin of the Controller that will drive the sensor with a voltage pulse. A Sink/GND terminal represents a connection to a Pin of the Controller where the voltage response, the acquisition time etc. will be measured.
For the case of a touchscreen, the Voltage terminals and the GND terminals can be the traces connected to the Transmitters and the Receivers, respectively, for a mutual capacitive touchscreen.
Simply click on SET SOURCE/VOLTAGE TERMINALS and drag with your cursor to select the Curves where the sensor is being driven from the IC source.
For the case of a touch button/slider/wheel, the Voltage terminals and the GND terminals can be the traces connected to the GPIO Pins. Since those types of sensors offer more flexibility in how you connect the Pins, due to cases of mutual and self capacitive sensors, it is up to the designer to choose which conductive parts are active and which conductive parts are grounded.
In the "Equivalent Circuit Analysis - Add a Pointer" tab, you can define the pointer and the pointer placements on top of the sensor, to evaluate the performance on the different positions.
In the "Equivalent Circuit Analysis - Analysis" tab, you can define the Compute Resources for the Analysis. Choosing more CPU will result in faster simulations and using more RAM will result in supporting larger and more complex layouts - Resources in SENSE
Once the simulation is completed, the netlist of the touch sensor is created. This netlist can now be download and used with a SPICE simulator or loaded in SENSE's System Analysis section