Hi TK,
The "import/export" function of HANA studio, it is only support for same schema and cannot change it during import, it has no special method to copy tables and SP on HANA studio so far, you may use BODS tool.
besides, you can modify your export *.sql script to modify schema by manually, and exec on sql console, or you can use sql script "like" key word to create table, such as create table "target schema name"."table name" like "original schema name"."table name" with data.
Hope this can help you.
Regards,
Jerry