More advanced hovering settings for taskbar items.

1. Separate behavior for combined / non-combined taskbar items (and add Aero Peek as an option)

One use case: Show Aero Peek for non-combined taskbar item (which has only one thumbnail) and show thumbnail preview window for combined taskbar items.

Isn't it silly that you have to hover the only thumbnail in the preview window to active Aero Peek? It would be nice to be able to directly trigger this action by hovering on the taskbar, imagine you're writing something and checking for documents on your laptop (especially on those 1366x768 ones) and place two windows side-by-side just make both your word processor and the browser hard to use.

2. Thumbnail preview / List auto switch

While I thought thumbnail preview for single window is silly, it really helps when it coms to combined items, for example: when there are too many tabs opened in a web browser (like IE 11), the thumbnail preview window could become pretty long and sometimes "glitches" - In this case, the "List" option is more acceptable. It would be nice if 7TT can auto determine which of the two modes to use based on the number of items combined (and the screen height / width based on a vertical or horizontal taskbar placing - or just make it a user-defined number in Advanced options.)