You can end your turn by clicking on the yellow ellips on the corner of your status screen (just beside where it says 'click spacebar or enter to finish your turn'). No need for Ctrl+Alt+Del
While there are no other stack commands (yet), there are tricks you can use. If you want to let some artillery wait, and use other units first, just click the other units. As art. are normally the first units to move, you skip all artillery, and instead continue the queue of offensive units. (assuming you clicked a tank).
The opposite is also true: after you used a tank, you can go back to the artillery by clicking one of your stack. However, do not click the top in in the list, as it is the last. Instead, right click, and click the bottom one. This will put the pointer to that unit, and after you used it you'll get the second one, etc.
It also works with different stacks (for instance with bombers in a city nearby), but that is a bit more complicated.You should experiment a little to see how it works.
DeepO