I am travelling to the UK from Doha via Arlanda airport. I will arrive on Qatar airways which arrives at Terminal 5 and will leave on British Airways which departs from terminal 2. I have a UK visa but do not have a schengen visa. I was told I can transit without a visa at stockholm, but when I look at the map of the airport I can't see how I can get from terminal 5 to terminal 2 without clearing immigration. Will I require a schengen visa just to get from terminal 5 to terminal 2?