But I need to connect KLM to LH with a 2 hour window and would be interested in any experiences. My last time in CAI I think I saw a transit door before passports, but can't be sure.

(BTW, it's a blowout of my last miles from KLM to pickup the return half of a bargain LH ticket for the miles (and get to SEN) before the programme changes in Aug and I originally took the LH flight to collect an AONE3 which is still valid that I may use to to start another AONEx ex CAI, or may just route down to collect the miles and return on the KLM miles ticket and get a cheap flight to Poland for my next AONEx. Phew. )