It seems like, as we can use base as a remote database access using odbc of jdbc, we could attach a remote database to a base database, so we could join remote tables to local tables, write local temp or perm tables from remote tables, write scalar correlated subqueries from remote tables and views into local table query target lists, like on Oracle, for example. This would make data import easy, as well as allowing lighter remote use as users use local tables for reports or preparing new rows or updates of remote data. There would need to be some sort of namespace operator for remote objects, like: remote_database_name::remote_table.
Feature requests are off-topic here. File at Bugzilla.