You are able to import products from Matterhorn with Stock Sync. Just choose on Matterhorn template after choosing to add new products to the store.
1. Go to Setup New Feed > Choose to Add new products to the store.
2. Choose or search for the Matterhorn template.
3. You can select the currency needed for the Matterhorn products in the first step. There are two options which are EUR and USD.
4. Click Next to the field mapping section.
These are the available fields that can be added with Stock Sync.