FalcoGer

When in a multiplayer server you can click select roles and then back to spectator and then reselect your aircraft.
Otherwise there is a key bind, though I can't remember exactly what it's called.
Also you can eject, you just need to open the door first. LCtrl + C or click the door handle, then LCtrl + E (3x)

If a restart doesn't fix that for you, you can configure a new neutral position. I think it's RShift+RCtrl+Num5, but not sure. Doing so sets the current camera position and rotation as the default. Personally I just have it look straight down the BRU to make alignment easier.

But why is this in wish list?

I removed all the mods from current hill. Now it works properly. Or at least that's what I think fixed it maybe?
In any case I can't reproduce this anymore.

If the distance between points is long enough, L3/L4 are panning in increments along the route.
So either this was fixed at some point or I didn't check with long distances and it was always correct.

You need to set your LRFD and Missile channel individually.
1. Go to Code submenu
2. Select Laser code preset (The letter) for LRFD
3. (Go to Freq and change code if you wish)
4. Go to Channel submenu
5. Select Missile channel that you wish to change the code for (1,2,3,4) on the top
6. Select the laser preset letter that you wish that channel to be assigned to
7. Select Missile submenu
8. Select primary channel laser code preset to match the LRFD setting on the left
I have had no issues with it after I figured that out.
You can only set the missiles to track one of the 4 channels you set up in the channel submenu and you need to select the channel that you want to track on the missile page. and missiles and the laser designator need to be set up individually. the code changes affect all missiles at once though (so unfortunately no rippling on 16 different lasers very quickly).

Enable freelook with left alt + c
Then you can move the mouse to rotate your head. If you hold down the middle mouse button you can translate your head.
you can also set your head position with right ctrl + right shift + numpad.

What is a modifire button? Do you mean a modifier?
If you add a custom modifier, there are two options. Switch and button mode. One toggles the states when you press it, the other one is released when the input ceases (the default for the existing modifiers shift, alt and control, etc).
Please be more specific about what you did and what you mean.

in route (RTE) click ADD, then select the waypoint either with the cursor or with L1 and the KU, then click in the list on the right where you want it inserted. it is inserted before the waypoint you select in the list. if you want to put it at the end, hit END.

Default is I (india, this forum needs a better font)
There is also the special option to remove the visual rim around the eyepiece.

Datalink will not come for a good while, I'm afraid.