For the line disconnect.reconnect, generally you would just delete the line in the unwanted place and then re-draw it to the desired location. If that deletes a face that you don't want deleted, then that means you have to leave the line where it was because it is making the face. In that case, leave the line there and then just draw in a new one.
The line style is controled in the "Styles" palette. Go to the menu Window>Styles and it should pop open a styles dialog box. In there go to "Edit" and then make sure you are on the edge settings (its the first of the small icons). And you can change a few of the edges settings there. You can also apply different styles of edges to the model by going out of the edit tab, back to the select tab. Click on the down arrow in the window and choose sketchy edges. Then click on any of the shown styles to apply it to the model. Then you can go back to edit and change some of the edge settings there.
Hope that helps,
Chris
