Add a "run" button for a preview?

[pyarchinit]

I suggest to add a "run" button which creates a preview of the transformation, because the OK button closes the window of the plugin and could confuse the user. What do you think about it?

Qgis 2.10.0 - Windows 7

[danistrigaro]

Now, when you press the 'ok' button the plugin run the algorithm without closing the window. However in the next future an 'Apply' button can be added to perform a preview of the transformation.