Most of the times when I am sketching, I am doing my lines one by one, and they don't connect. Kind of like drawing something with a pencil. When you click on a line, the default for Solidoworks is to treat it like you aren't lifting your pencil from the page. To do a heap of non connected lines I have too click on the line icon, draw a line, then click on the line icon twice and then draw another one. Is there a way to draw lines so they are not continuous, so I don't have to keep clicking on the line icon everytime?