In Renovation mode, you can select all objects assigned to a specific Renovation category.
- With the renovation drawing open in an active Renovation mode, click the Select (Existing, Demo, or New) tool on the Renovation panel.
If you want to… Then… select all objects in the Existing category click 
. select all objects in the Demolition category click 
. select all objects in the New category click 
. - With the objects selected, you can complete a command such as Delete.