This is available for these imports:
Items
Customers
Contacts
Leads
1. Click on the Cog
2. Click "Import Center"
3. Click on one of the Flexi imports
4. Add the file and select the matching master field (e.g. the company name)
5. Click on the plus button
6. Select the custom type and its label
7. Click here.
8. Click "Next" to complete the import
9. The import completes