Precondition: Guiding sketch and cross-sectional sketch are already available.
- Select both the guiding curve and the cross-section sketch. 
- Click on the context menu command Create basic history [Create sweep base]. - -> The Basic history [Sweep base] tab page opens. - If other progression curves are available, you can select them in the list field under Select sketch with progression [Select guiding curve]. 
Alternatively, you can initially select only the cross-section sketch and then select the corresponding progression curve in the list box on the Basic progression [Sweep base] tab page (if several are available).


![[Note]](https://webapi.partcommunity.com/service/help/latest/pages/jp/3dfindit/doc/images/note.png)

