Enter and exit building in the same turn

[Viking709]

This question was asked before but no definitive answer
A unit starts it move next to a building and spends half its move to enter and the remaining half to exit
In effect changing from line or column to unformed and then back to formed
A line moving in difficult can only go 2 UD
A column can move 4 UD in difficult but you still end up in a different formation
Is this correct?

My understanding was that a unit moves into the building and then occupies it and is no longer a formed unit which essentially would be a formation change Then next turn it can exit and spend half a turn to exit {forming up} and then can move up to half

Which is it?

Hopefully El Creator or Zeiton can shed some light on this

Thank You

[zeitoun]

I agree it's confusing.

We can argue that the units takes the road to cross the building without formation, and take one after.

if i had to referee in a tournament i will say yes.