Like here: http://www.youtube.com/watch?v=ffLlUK84Eaw. Move cell/cells data by mouse.
You can do this already - just select, release, click inside of selection and drag without releasing. You don't need to go to the side of selection in Calc like you need to in Excel.
Yes, but it is not easy to move 1 cell as in Excel. You need to move selection on the second cell, then return and then move by mouse.
You are right, moving 1 cell only is not easy - we should find a solution for this.
I think this is a duplicate of Bug 38994
*** This bug has been marked as a duplicate of bug 38994 ***