I would to change my salient template but I don’t have “Demo importer” on the panel option. How could I import new one ?
Please check the Item documentation hopefully you will get necessary support. If you have still problem with the Item then the best way to get the support is Contact your purchased Item Author. How to Contact Author and let them know because Item Author are best expert about their Item functionality.
Also you can check your theme Option if you find anything related to the issue.