For Blender, hit 'N' to open the Properties Shelf, one of the things in there is called "Transform". When you're in Edit mode you can select vertices to see their exact position (and change it), with faces or edges this will show their average position. If Blender has an option similar to the Wings option in Case 1 I don't know where it is, as a workaround I would Shift+A (in Edit mode) a new circle mesh with the settings I wanted, move it and the join it to the cylinder.
Sorry for the rough images, was trying to do them quickly.