I've asked this before with little success...but how are fellow adopters of FTL using formations?

[Frosty]

I do not use formations generally but I believe the OP is trying to produce the same formation regardless of driving toon. Typically we move our box by focusing on one screen and have the other 4 on auto follow. When the team comes to rest the group looks like this in top-down view mode

<snip!>

I believe the OP is looking for a way for X to inherit the movement key of B in the formation key while B is leader so hitting the formation key has the exact same result regardless of the driving toon

The OP hasn't really said what they are looking for.
But the link I posted does this. No matter what toon has the screen focus they become my "X" and trade places with the original X.