[Galaxy Note 4 Android Development (Exynos)] ghembuls:
Answers:

1. If you mean to combine some apps from previous release, you can do it. As long as it is only for personal usage, or a solution for a bug in latest release. Please remember, you cant distribute to others, without permission from original developer.

2. Try to replace systemUI.apk from another version of Nemesis, if you want to do that, keep in mind that refined.apk and systemUI.apk are connected, thus, you need to replace both.

3. Please remember, Nemesis is a ported ROM. Unlike the neighbor ROM which is stock pushed, stock pushed means, you apply apps which originally dont exist in official release ROMs. On the other hand, Ported means, you alter the rom itself which is not intended for the specific device. Such as Nemesis, it is N7 rom ported to N4. The differences not only in soft but also hardware. Fingerprint recognition, is both hardware and software (ROM). Because Nemesis is only a software, thats why some utilities from the other device are not possible to utilize. So, you can choose. Taking a stock push which is the same as stock but more apps, or ported, your device looks like N7 and you can get a glimpse of N7 feels.

4. Themes are 3rd party cosmetics, Nemesis developers are ROM (system) developers. Just because an app is included within a ROM package, doesnt mean it was built by rom developer. You should address your requirement about a theme to the theme maker, not to Nemesis developer. Samsung itself, includes some apps not made by them, in their ROM. Please, dont complain about any 3rd party apps or accessories not made by developers. If you dont like the included theme, just download it on store. Easy solution.

5. To use AoD, usually the workaround is to select your AoD model, then set your screen to FHD and Apply. When done, change it back WQHD, then Apply.

6. You need a specific app, built for another device which has so many differences in hardware and software. Just because you need it, doesnt mean the developers need to build it. For obvious reason, compatibility issues. Looks great on S8+, doesnt automatically looks as great in N4. N4 is old, even if I got the cash, I change to N8. You want S7 or S8 apps, and thinking to push it into Nemesis. You think like the neighbor thread, pushing apps into a ROM with less consideration in compatibility issues. Read the thread, more complain than success stories. Nemesis is a ROM thread not apps, some extras maybe included but it is as it is, just an extras.

7. You are really funny, you want N8 apps on N4. You think porting an app is like copy+paste sentences on MS Word? N8 is the latest release, latest and most recent in any aspects. Once again, you think Nemesis is just a software store, if you read carefully, this thread is all about porting N7 ROM for N4 devices. What about those extra apps? Well it is an initiative made by developer for us, the end user. Some extras you found in this thread are made by other xda members, regardless what ROM they use.

Conclusion:

1. Nemesis is a rom (device system) thread, not a themes, an app or any 3rd party apps.

2. Before posting bugs, have you tried to explore some options which may lead to solve your need.

3. Make sure you understand the difference between PORTED or PUSHED, your understanding on that matter will lead you to make better questions or proposal.

4. Nemesis Team member build a ROM (system), 3rd party apps are not within their coverage.

Hopefully this will assist you.

Thanks.