Originally Posted by
Fabo.sk
Eco Light will kill your option to select a seat, but it does not always work properly. One thing is for example multi-carrier routings are messing this up even within group. i.e. LH codeshare number on EN or OS metal.
Another way that used to work well is check-in in OS then use LH app to change seat for free (even to exit row)
yes that I used for years (use LH app to get exit row). this time OS Vie-Lhr-Vie flight. I will see tomorrow