1. good idea. Isn't that easy though since there are some calculations on resource requirements that only the first 3 items in build queue are undergoing so possibly you would switch places with a bigger-cost item which should not be possible or at least a warning should appear on-screen to tell you that this item cannot be built at this turn but maybe 5 turns later respectively 5 entries later in the build queue.
2. try left and right cursors or side-mouse-buttons.
3. in intel screens you have to do 100% on Internal Security to remove percentages from already allocated areas. I know it's a bit clumsy but in the end it's possible to do and that's what counts isn't it
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