In YAM, I manually move messages from my Inbox to folders within groups. I find it annoying when I click on a group to expand it, focus moves from the current folder to the group (which displayes nothing in the message list area anyway). After I expand the folder and I go back to the folder I wanted to stay in, any multiselections are lost.
MS Lookout does not exhibit this behaviour. If you multiselect messages you can single-click any folder to expand it, focus does not change, and you can drag your still multiselected messages into another folder.
Basically, I'm requesting that 1) focus does not change from your current folder when you expand/collapse a group 2) expanding/collapsing groups takes one click instead of two.
I did originally submit this under YAM https://sourceforge.net/tracker/?func=detail&atid=363560&aid=1678049&group_id=13560 , but was advised to file this here instead.