If you are using the edit panel to rotate objects (with the ball thing up top) then in the lower left corner will be a readout of degrees moved, use that as a guide. Also as stated above click the little A and go to the attributes and manually enter your numbers. Also depending on what mode you are working in (object space, world space) will affect how things work. To change modes just click on one of the littel triangles under the edit icons in the edit panel. IOW in world space changing the Y size will stecth the object up no matter it's orientation, in object space doing the same thing will make it taller based on what the object's top is (if it's laying on it's side it will get longer along the ground instead of getting taller towards the sky). Using the attributes window is like working in object space. Hope that made sense. Using copy matrix in the edit menu is a good way to place windows in the holes you make in the wall. Select the negative object that made the hole, copy matrix, then select the object you wish to put in the hole and paste matrix. This will also resize the object so you may have to adjust it to get it back into shape but it'll be in the exact spot you need it to be (or simply note the X,Y,Z coordinates of the negative object and enter them into the attributes window of the object you wish to put there).