You can set default upload values by modifying the following settings in
Administration → Local Administration → Library Settings Editor:
- 
Upload Activate PO
- 
Upload Create PO
- 
Upload Default Insufficient Quality Fall-Thru Profile
- 
Upload Default Match Set
- 
Upload Default Merge Profile
- 
Upload Upload Default Min. Quality Ratio
- 
Upload Default Provider
- 
Upload Import Non Matching by Default
- 
Upload Load Items for Imported Records by Default
- 
Upload Merge on Best Match by Default
- 
Upload Merge on Exact Match by Default
- 
Upload Merge on Single Match by Default