| More docs on the ARB website. See also index of helppages. Last update on 24. Jun 2017 .

Main topics:

- ARB: a Short Introduction
- Glossary
- NTREE MODES (general info)

Related topics:

- Reset Logical Zoom

# LOGICAL ZOOM MODE

- OCCURRENCE
- DESCRIPTION
- NOTES
- EXAMPLES
- WARNINGS
- BUGS

## OCCURRENCE

### ARB_NT and ARB_PARSIMONY: <LZoom> button in the left column

### F5 on the keyboard

## DESCRIPTION

### The 'LOGICAL ZOOM MODE' allows you to display subtrees within the tree display area of the 'ARB_NT' window.

### Click on the <LZoom> button of the 'ARB_NT' window or press the 'F5' key on the keyboard to activate the 'LOGICAL ZOOM MODE'. In the latter case, the cursor has to be placed within the tree display area.

### Display a subtree:

Move the cursor to that internal node of the displayed tree (section) which defines the subtree and click on the left mouse button. The subtree-defining node is that located closest to the indicated root (open square) of the whole tree which directly or indirectly connects all branches of the subtree.

## NOTES

### To reset the display to show the whole tree either

- choose the 'Logical Zoom' item from the 'Tree/Reset zoom' menu or
- left-click somewhere outside the tree or
- press the key '0' (zero) in the tree display.

## EXAMPLES

### None

## WARNINGS

### None

## BUGS

### No bugs known