Switching all the downloads to pause mode ???
Unfortunately you can't mark several files with one click. You would have to click every file and switch to "pause mode" manually. This is not acceptable. If you've got 10 files in your list you can do this .. OK.
But Xolox seems to be designed for DSL or users of other fast connection. The download lists of those useres will be usually very very large. Therefore "pause mode" doesn't satisfy.
And besides this, what happens if you're not watching the download all the time ... You're away and the movie is finished ... and all the other files ??? The download will pause untill you switch on every file manually ????
Maybe you see the advantage of a priority setting ...