In the model explorer or in the 3D view, select the floor fitting to be modified as the CE. On the WALLLS AND FLOORS tab, in the Modify group, click Fitting, select Floor Fitting from the drop-down list to display the Floor Fitting window.

By default, Modify CE is shown in the drop-down menu and the CE is described. The functionality available from the window is identical to Floor Fittings window which is used in the creation of a floor fitting. Refer to Create Wall Fittings for more information.