The drawing space allows you to draw over an architectural plan after importing underlays (. PNG's) into the workspace. Once imported, a quick sequence of calibrating and setting user preferences allows drawing thermal zones or spaces. The process is repeated for all zones and levels of the building.
Controlling the visibility of Layers enables geometry and underlays from other Drawings to be seen. This is useful for reference and to ensure buildings are drawn correctly.
Control your Drawing layers by selecting ‘Layers’ in the drawing space ribbon. Select the layer you would like to show and toggle the geometry or underlay to make them visible.