One-order multi-package printing referred to the situation where an order needed to be split into multiple packages for delivery in an e-commerce delivery scenario. Usually, an order only needed one express delivery number to be shipped. However, if there were too many goods in the order or there were other special requirements, and two or more packages were needed to send this order, multiple express delivery numbers would need to be printed. This was the printing of multiple packages. The specific printing method could be operated according to the order printing software or platform used. Generally, one needed to activate the multi-package function of one order, select the number of orders to be printed, and the corresponding sender, template, and printer information, and then print.

It could mean that men who have a lot to offer, perhaps in terms of resources or knowledge (represented metaphorically as 'big packages'), are sharing their experiences or life stories.
Perhaps it refers to men who have a lot to offer in terms of knowledge or skills. They might be in a position to share their stories of how they acquired those skills or knowledge. Let's say in the field of art, a man with a great portfolio (big package in a sense) would share his journey in creating those artworks.
Well, 'first print' in comics means that it's the very first time that specific comic has been printed. Usually, first prints can be more valuable because they're rarer and have a certain novelty factor.
Regular print for a novel usually refers to the standard font size and formatting used for the text. It's designed to be easy to read and follow.
You can try online bookstores like Amazon or Barnes & Noble. They usually have a wide selection of large print paperback novels.
I think 'print manger' might be a misspelling. It could potentially be 'print manager', which usually refers to a software or person responsible for managing the printing process. But without more context, it's hard to be certain.
It could imply that the story has various elements or themes that touch the reader's emotions deeply in different ways.
It could symbolize deep love or strong emotions within the story. Maybe it represents multiple forms or layers of love among the characters.
It could symbolize deep love or multiple forms of affection. Maybe it represents love from different characters or different kinds of love within a complex relationship.