You can annotate any drawing in Space Dashboard using Redlines.

You can apply lines, shapes and text to a drawing

To apply an object, select the shape or line, and click and drag to place

To apply text, click "Redline Text" and input your text

And click where you would like it to be positioned

You can re-position redlines by holding left clicking and dragging

To save your redlines, click "Save Redlines"

You can create a floor plan task by clicking "Yes"

You will be re-directed to the task system, where your new task will contain the redline already attached

How to Annotate Drawings In Space Dashboard