mouse click on objects

Hi,

I want to be able to click on an object that I've created and the object moves towards a certain point, then when my object reaches the required point a window appears with a number in it, now this number is a measurement that I've already registered and taken earlier. and after completing the measurement I want to click on my object to perform another move and displays another number (measurement) and finally last click on my object to return it back to it's position. Is this possible? if yes which way or method I can perform this. Thanks for your help guys in advance and sorry for the long question as I am totally new to unity game engine but it seems very interesting system to use. Thanks