Yes. Parametric design is achieved by utilizing the Bulk Simulation feature. This allows you to use your preferred programming language to generate a sequence of files in NEC format with one or more variable parameters. AN-SOF can then process these files automatically in a single batch. For script generation, we recommend Scilab, a free numerical calculation tool that can be used to program scripts for creating multiple antenna descriptions with varying parameters. You can download an example of a Yagi-Uda antenna with variable element spacing at this link to see this workflow in action.