Key bindings and Mouse Functions

Napari viewer and layer key bindings and mouse functions

Mouse / Key binding	Action
Click on a point or label	Select this node (center view if necessary)
SHIFT + click on point or label	Add this node to selection
Mouse drag with point layer selection tool active	Select multiple nodes at once
Q	Toggle between viewing all nodes in the points/labels or only those for the currently selected lineages

Mouse / Key binding	Action
Click on a node	Select this node (center view if necessary)
SHIFT + click on a node	Add this node to selection
Scroll	Zoom in or out
Scroll + X / Right mouse click + drag horizontally	Restrict zoom to the x-axis of the tree view
Scroll + Y / Right mouse click + drag vertically	Restrict zoom to the y-axis of the tree view
Mouse drag	Pan
SHIFT + Mouse drag	Rectangular selection of nodes
Right mouse click	Reset view
Q	Switch between viewing all lineages (vertically) or the currently selected lineages (horizontally)
W	Switch between plotting the lineage tree and the object size
Left arrow	Select the node to the left
Right arrow	Select the node to the right
Up arrow	Select the parent node (vertical view of all lineages) or the next adjacent lineage (horizontal view of selected lineage)
Down arrow	Select the child node (vertical view of all lineages) or the previous adjacent lineage (horizontal view of selected lineage)

Mouse / Key binding	Action
D	Delete selected nodes
B	Break edge between two selected nodes, if existing
A	Create edge between two selected nodes, if valid
Z	Undo last editing action
R	Redo last editing action

This video shows how to use the different mouse and key functions, as well as their corresponding buttons, in the napari layers and the Tree View.