A system extension is being developed as an add-in for the SOLIDWORKS CAD software. The focus of the project is to be able to set the CAD system more flexibly for the needs of the user. This makes working with the CAD system easier and increases efficiency. This project demonstrates the possibilities and advantages of an add-in. Only with the help of an add-in can the advantages of an established CAD system be fully exploited, while at the same time saving the high costs of stand-alone software development. More information about Custom Toolbar and a download link can be found here: CUSTOM TOOLBAR (SOLIDWORKS) – FREE.