import better

web/locales/en/main.ftl

@@ -597,6 +597,10 @@ import-normalize = Normalize headers
 import-normalize-hint = Rewrites the header rows to the table's own column names. Nothing is imported - you see the changed CSV first.
 import-normalized-message = Headers rewritten. Read the CSV below before importing it.
 import-normalized-unchanged = Headers already match the table exactly; nothing was changed.
+import-system-columns = File includes system columns
+import-system-columns-hint = Tick this for a file exported with system columns. It loads as it stands: 'deleted' is written from the file, so a row that left deleted arrives deleted. 'id', 'row_revision' and 'created_at' are assigned by the server and cannot be carried over.
+import-err-system-columns-present = The file contains system columns ({ $columns }). Tick “File includes system columns” to import it as it stands, or remove those columns from the file.
+import-success-ignored-system = { $columns } are assigned by the server, so the imported rows carry new ones.
 import-err-missing-type = Missing type for column '{ $column }'
 import-err-permission = Import permission is required. A table also needs insert permission before it can be loaded.
 import-err-unterminated-quote = CSV contains an unterminated quoted value.