Collabora Office 21.06 Help
Drawings in Collabora Office Draw support layers.
Right-click the layer tab area at the bottom.
Choose Insert Layer.
Type a name for the layer in the Name box.
In the Properties area, set the options for the layer.
Click OK. The new layer automatically becomes the active layer.
To change the properties of a layer, click the name tab of the layer, and then choose Format - Layer.
You cannot change the name of or delete a predefined Collabora Office Draw layer.