The first step of the grafting pipeline consists of choosing and uploading the scaffold and insert proteins. This application supports functionality for downloading the files from the RCSB Protein Data Bank to upload them directly from the local hard drive. When the protein is downloaded or uploaded the secondary structure information is calculated using the DSSP algorithm. The secondary structure can however be adjusted by the user by clicking and dragging on the 1D representation and choosing from the three options that appear below that representation.