Use markups to highlight objects and parts in the 3D View. You can also add text to comment on the model. Markups will be saved locally.
There are 5 types of markup available:
Freehand Markups are markups that you can draw by hand.
Line Markups draw a line between two points that you pick.
Arrow Markups draw an arrow between two points that you pick.
Text Markups allow you to type text in the model.
Cloud Markups draw a cloud in the model.
To switch between markups, use the arrow next to the Freehand markup.
Exiting the Markup Mode
Markup mode is continuous, and will stay active even after a markup has been placed. As long as the tool is active, the measurement button is highlighted in blue.
Press the Escape key (ESC).
Click the Markup button in the toolbar again to deactivate the tool.