After auto-digitizing your design you can use the editing tools in the Customize Design toolbox. For example you can set your fabric type in the Auto-fabric tool and it will automatically adjust the settings of pull compensation, stitch density and underlay.
You can also edit the various parts of your design with the tools included in the Edit Objects toolbox.
For more in-depth information read the Auto-Digitizing section of the Hatch Embroidery User Guide.