You can customize window sill easily to apply bottom rake (sloped bottom sill )
- Open the window properties dialog and select the Interior and exterior sills tab. Activate the Profile cross-section option (in this case only the interior sill will be edited).
- In the pop-up window click on the Select profile button, then select the appropriate profile. You can also use your own profile.
- After selecting the appropriate profile, enter a reference point in the upper plane of the profile and, if necessary, adjust the size.
Accept the changes and the program will automatically display them in the 3D view.