OK thanks I found it @Dllama4

On mobile devices, press the rotation button. A bunch of mirroring and rotation buttons will appear. I don't remember the rest, but it should be very simple from were I left off.

Ok thanks @RyneKuczy

@ThePrototype I think it's the bottom "airplane" in the mirroring section, I would just experiment using a cockpit though

Also how do I mirror individual parts? @Dllama4

Lol thanks I've taken note of all of this @Dllama4

1. Use the Finetuner and Overload mods if possible. (If your device cannot download these mods, use the new transform tool.)
2. Build what you like to build. This will help a lot because it will encourage you to keep building, it will give you confidence, and it will make it fun.
3. Put effort into what you build. Good builds take some time to make, but if you have fun building what you are building, you will want to build.
4. Functionality and aesthetics. Make things that are both functional and aesthetically appealing. Normally, builds are either really good looking, but not very functional, very functional, but not very good looking, or good looking and functional. Make things that are both appealing to the eye and things that are functional.
5. Set goals. Whether or not you care for points, I personally set a goal of how many upvotes I want. If you set high goals, you should put more effort into your builds. If you set low goals (which you shouldn't be doing in my opinion) you don't have to work as hard to reach your goal.
6. Make unlisted posts of your work in "progresses" and ask certain people for tips. This could be helpful because the might find flaws or problems with your build.
7. Constantly test your build. A lot of times, people will just build and build and build without ever testing the plane until they are done building. When you are adding a lot of detail or making something complex, many problems can occur. Testing your plane after every 5-10 parts or so can prevent non-fixable problems in the long run.
8. OMG, this is the longest comment I've ever written in the history of my SP account.

@ThePrototype Never use da mirror whole aircraft tool. Only use da mirror single part tool.

Then how will I get the detailed on the other side? @RyneKuczy

Yeah that's what happened I fixed it though @RyneKuczy

Build the plane first, then add the detail. Also NEVER mirror the entire plane or you’ll get duplicates and your part count will skyrocket.

I just removed around 390 pieces @jamesPLANESii

i just had the bug where pieces duplicate and now I have around 300 pieces to get rid of END ME @jamesPLANESii

OK I will and thanks, I still somewhat new to making detailed builds I made 1 somewhat detailed build and that was my Ju-53 @Jengstrom

Panel lines and paint schemes. (Look at my hondajet for paint scheme tips)

I wish @jamesPLANESii

It's funny because you build fictional aeroplanes for ages, and then you build a replica and you realise you're amazing. XD @ThePrototype

Thanks! @ThePrototype

Lol that was me in the past... XD @ThePrototype

I might do interior in one of my later builds but good luck on yours @jamesPLANESii

I dont know why but if I make a replica I can't do it but if i make a fictional plane it's looks decent @jamesPLANESii

Nice! I've been building the interior on my Convair 580 for over a week now. @ThePrototype

My last plane the Ju-53 was very well received so now I'm working on a flying boat @jamesPLANESii

Lol right now I'm working on a flying boat and just now starting on the cockpit @jamesPLANESii

I don't but I still do it. XD (It's one of the reasons my planes take several weeks to complete. XD) @ThePrototype