A number of view controls are provided to allow you to change the point of view for the model:
View tools can be activated at any time during operation of the drawing tools and control returned to the active drawing tool after completing the view process. For example to draw a block perimeter adjacent to an existing cylindrical block:
To continue drawing the perimeter around the other side of the cylindrical block, click on the 'Orbit' tool and orbit the model to reveal the other side and then pan to centre the model:
You can then return to the drawing process either by pressing the ESC key or selecting 'Cancel Pan' from the right-click menu: