What do you mean paneling? You mean like hollow fuselage? Then yes I have made a couple of planes with them.. you can check em out in my posts

@Planedude that is my technique below

The biggest problem with paneling is this:
You know how when one side of a fuselage is connected to anything, that side stays still while the other side moves? And if 2 or none of the sides are connected to something, both sides move (When adjusting length and rise and run)? You want it so that only one side connects to something (it's so much easier that way). But most of the time, because of the carppy way SP connections are made, no matter what you do, the panels won't only connect on one side, making life so much hecking harder. What you do is get a "block" (the first thing under the parts menu) and attach the panel onto it. Then nudge the block down about 20 units at 250% nudging. Then, connect the block to the main body of your build. This will ensure that your panel will only be connected on one side. Then, nudge your panel into position, and then voila.
It's hard to explain, and I hope you understood what I meant.

@Mattangi2 @GreatHenry multiple. Most include fuselage to cockpit, fuselage to wing, the tapered nose (idk, imagine a big flat head screwdriver tip given a fuselage), rounded to hard corner types, landing gear hatches, and the thing for flaps

Hey I need some help with this too, can someone post an example of this technique being used?

Can I look closer?
You can use structural panels or fuselage units with dimensions of "0.1, (the desired width), (the desired length)" and the corresponding smoothing.

Specify. I might be able to help.