Hello Having used Maildroid for years, alongside Thunderbird on Linux, Mac and Windows desktops, I'm a recent convert to Thunderbird Mobile, and I'm very impressed. However, I have over 5,000 IMAP folders, and the way that Thunderbird Mobile displays them linearly is not usable/accessible. I remember trying K-9 years ago and rejecting it for the same reason. Is there anywhere I can up-vote some effort to adding hierarchical folders, with expand/collapse, bringing TM in line with Thunderbird Desktop? Unfortunately I don't have the coding skills to volunteer on this. Thanks Jonathan.