Clone tiling needs "Array" between points option

Inkscape Devs, Great job with the create tiled clone feature.

  I have a very simple but much needed improvement to the feature. Currently in inkscape it is very difficult to tile clones to fit the "height" or "width" of the page or to create clones between "two points". You basically have to go through an iterative process of guessing the percent X and Y shift until you hit the magic number. Then the feature works perfectly. Inkscape should provide a way to select the end point for the tiles and compute the X Y shift for you.

  In the past I used micrografx designer 6.0 (vintage? 1996) which included the "Array" feature that did what tiled cloning does, *except* it provided the option to choose the number of copies and then "select end point" with the mouse. Designer would then compute the distance between the original object and the "end point" mouse click, divide the distance by the number of objects and then calculate the needed offset to evenly distribute the chosen number of copies between the original and end mouse click. Inkscape should do this too.

  The implementation in inkscape seems like it would be fairly simple. Inkscape already has all the pieces of the puzzle under the "Shift" tab in the create tiled clones dialog. All that needs to be done is to provide the option to "select tiles end-point" with the mouse and then inkscape would compute the Row and Column X & Y shift values for the user. That would take a lot of the guessing shift values away and provide the ability to tile between two points. Inkscape already has some great options under the "Align and Distribute" dialog that could be integrated with cloning that would allow the user to select the "left", "center", or "right" as the orgin to tile the object from and these could be options that the user has for selecting how to tile between points.

Thanks for the great work on this package. This would make an easy addition to 0.47 ;-)