Do you miss something on BrainKing.com and would you like to see it here? Post your request into this board! If there is a more specific board for the request, (i.e. game rule changes etc) then it should be posted and discussed on that specific board.
Why not use a web browser which supports tabs?
1. Mozilla, which has native support
2. and for example SlimBrowser which I use, which uses original Internet Explorer to display pages but supports tabs.
That way I simply have one window and 10 tabs in it, to display my favourite games and you can set stay here as default move.