Custom Field not displaying at ‘Slides’

Hi,
I was unable to edit the sections of the imported ‘Shop’ page from the template of ‘Accessaries’ of ‘WoodMart’. I removed the imported content and then re-imported the template ‘Accessaries’. But for this time it didn’t showed any image of slider or product and also the whole structure of imported content was disturbed. When I tried to add Slide from Theme customization, it is not showing the ‘Custom Field’ Options to adjust the sizes how can I get back the Custom Field and other content Options?