Remove/omit item sub-details from pick list, such as subscription item interval frequency

[egantz]

We utilize Recharge subscriptions and on the pick list we group all orders by each item, but for subscription items the pick list is displaying each separate charge interval frequency, shipping interval frequency, and shipping interval type (week, month). We also use an upsell app which appends an upsell offer ID to each upsell item sold, thereby creating a separate line item on the pick list for each upsell item sold. I would like to omit these item sub-details from the pick list so we can group all items of the same master SKU together, regardless of subscription frequency, upsell offer, etc.