@Thor
It's been a while. The year is almost over.
Sorry. I wasn't able to finish the guide I promised. It was a lot harder than I thought it would be, and I'm not skilled enough to teach it to others.
But instead I found a detailed and useful tutorial on modding the X4 universe by enenra.
You may already know this, have solved your problem, or maybe you're no longer with X4.
So I felt bad that I couldn't keep my promise, so I thought I should at least point you to a tutorial by a better modder.
I honestly don't know if it's a good or bad thing to give people a link without asking the author of the tutorial, but here's the URL.
Thanks to enenra.
"Universe Creation" tutorial by enenra
https://github.com/enenra/x4modding/wiki/Universe-Creation

I have uploaded the Nexus version
try this
https://www.nexusmods.com/x4foundations/mods/1350

For some reason steam refuse to download this mod for me, do you have any alternative download locations?

Definitely!

Thank you. I'll definitely check your guide.
I have edited many mods so far but only to the limit of my capability of understanding. Your guide will be a great help.

thank you for your reply.
It may take a little more time than just creating a mod, but I'm going to use a Steam guide to summarize how to create a mod to the best of my knowledge.
You can do it more freely than writing in this comment section or chat, and it should be easier to review later.
Maybe it will give people who aren't interested in mods a chance to try making one.
Is that okay?

THANK YOUUUU!
I'll be looking forward to it.
Actually I have been checking the code ppl made for new gate connection for a while but never been able to create one myself.

of course. Making a gate mod is a little time consuming, but it's not difficult. I'll help you if you don't mind.

Author sir, may I ask if it possible for you to help create, as a new mod, a new gate connection between a new mod sector - "Farnham's Legend V" (https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=2971583324) to HOP "True Sight"?
It is my wish to streamline the distance between the two free sectors - Farnham's Legend and Nopileos' Fortune.

Well, I made it.
https://steamhost.cn/steamcommunity_com/sharedfiles/filedetails/?id=3174666681&searchtext=
I'm sorry that I wrote it a little badly.
Once again, when commenting, I would appreciate it if you could clearly state whether you are requesting a mod, an update, or a question.
Based on that, I will decide whether it is possible or whether I want to do it.

thank you.
I understand his request. You can also make mods with that content.
However, I wanted to say that connecting the gates is a bit of a hassle, so it would be a nuisance if you just write down your requests and ideas and leave.
If you want a mod, you can either make it yourself or tell them the content and ask them to make it for you.
In the end, he only wrote the content and did not write that he wanted it to be made.
I'm not a machine, so I just don't want to work hard for something I'm not even asked to make.

Specifically, Napolias Fortune 2.

I think he just wants that sector less isolated. Basically another gate connection.

What is your intention...
I don't know if it's a question or a request, but when commenting, you should at least be specific and clear about what you want done.
I'm not a psychic or an English speaker, and all replies and the effort and time I put into creating the mod are free of charge and there are no obligations...
Comments that are difficult to respond to are really annoying and only take away my slight motivation.
どういう意図なんですか・・・
質問かリクエストか分かりませんが、コメントはせめて、何をどうしてほしいのか、具体的かつはっきり書くべきです。
私はエスパーでも英語話者でもありませんし、全ての返信とmod作成にかける労力と時間は無償であり、そこに義務などありません・・・
対応しずらいコメントは本当にうんざりしますし私の僅かなモチベーションをそぐだけです。

perhaps a gate from Hat Choice 3 to naploias fourtune 2 ? or napolias fourtune 2 to another sector ?

yes. The default gate layout has very weak connections between DLC factions and between DLC areas. Of course, solving this problem is also one of the purposes of mods.
If Terran, Boron, Split, Argon, and Xenon are indirectly connected by this gate, Getsu Fune and Heretic's End will be lively.
As you may know, Heretic's End is restricted by default so that major forces cannot advance, so if that is left as is, NPCs will not come often.
Well, it depends on your play style, but I recommend that if the player obtains Heretic's End and then lets it go, it will remove the restrictions on NPC forces and make the sector more active. (Or you can use other mods to remove the restriction)
I hope this helps relieve the isolation of Terrans and Boron.
Thank you for your reply.

I just want the boron and the Terran to be less isolated. the default terrans and pio/argon territories had a choke hold.

Thank you for your comment.
Access between headquarters and Terran territory will be easier and will help save time.
NPC factions also use this gate to come and go, so it may have some impact on the AI economy.

This is fantastic, Makes the game seem more interconnected.

Robbyさん、コメントありがとうございます。お久しぶりです。まさにそのためにこのMODを作ったので、そう言っていただけて嬉しいです。
テラン領やアンティゴネ領へのアクセスが容易になるので、研究や増築、ストーリーミッションの時短に役立てていただければ幸いです。
また、サベッジスパーゲートからゼノンがよく流入するので、配下の交易船やご自身の安全にお気をつけください(一敗)

シンプルですが本部ステーションのアクセス周りが良くなるナイスなMODです！
感謝！使わせていだきます！