Store Commander's CSV import tool will allow you to associate the necessary advanced stocks management mode to your products in bulk, whether you are creating or modifying your products.
Your CSV file will include a column called 'Advanced Stocks' using values 1, 2 or 3.
These values are the values used in Tools > Settings > Catalog > Advanced Stocks
Please note that if you are going to create new products and use the default value, it will not be necessary to include this field in your CSV import file ; the new products will inherit the default mode.
In this instance, the value is '1: Disabled'. All newly created products will not use the advanced stock management.
To enable the advanced stocks management by CSV import, the value to include in your CSV file will be 2.
To enable the advanced stocks mode + manual management by CSV import, the value to include in your CSV file will be 3.