Missing USPS mail box 1092

With the regional rate boxes getting axed, we have moved to stock all free mailbox supplies we have not used before. One of them is the USPS mailing box 1092 [https://store.usps.com/store/product/shipping-supplies/priority-mail-box-1092-P_O_1092] which is one of the alternatives we are testing out for when our stock of A2 boxes is gone. The 1092 box does not appear in the service package options under USPS Priority Mail Boxes when adding a package in the settings. I have added it as a custom box, but our UPS API rates are also pulled for what is a USPS Priority-only box. To keep everything clean, I would like to add this box in its proper place under the USPS Priority Mail Boxes section in the create a label dropdown. Thanks