When importing products, can the suggested retail price (MSRP) also be filled into Test Price or Second Test Price at the same time?

Yes. 1. In the column mapping step, find the "MSRP" row. 2. In the "Also fill this number into:" section of that row, tick the price categories you want to apply it to, for example "Test Price" or "Second Test Price". 3. Once ticked, the unit price of that price category will use the number from the suggested retail price. 4. After confirming that the other column mappings are correct, click "Next" at the bottom right to go to "Value mapping", and then complete "Review and fix" and "Import" in order.