# Hotkeys shortlist

### Global hotkeys <a href="#global-hotkeys" id="global-hotkeys"></a>

#### General annotation <a href="#general-annotation" id="general-annotation"></a>

* `right mouse click`on existing annotation - (click on an object) bring up classes pop-up menu to change assigned label class
* `ctrl / cmd + z`- undo action
* `cmd + shift + z`- redo action
* `shift + d`- set image status to "Done"
* `ctrl + shift + d`- set image status to "Done" and go to the next unlabelled image
* `shift + r`- set image status to "To review"
* `shift + q`- set image status to "skipped"
* `shift + t`- select next annotation when another annotation is selected
* `t`- select next annotation
* `l`- select the last created annotation (when not creating another object/polygon/mask)

#### Navigation / View <a href="#navigation-view" id="navigation-view"></a>

* `+ or scroll down on mouse or expand fingers on touchpad`- zoom in
* `- or scroll up on mouse or pinch on touchpad`- zoom out
* `press and hold spacebar + move mouse or ↓ / ↑ / → / ←`- pan image in the chosen direction
* `shift + 1`- zoom to original size (100%)
* `shift + 0`- zoom to fit the image to the screen
* `shift + n`- next image
* `shift + b`- previous image
* `d`- hide all annotations on an image as long as the key is pressed
* `v`- increase the opacity of all annotations to 100% as long as the key is pressed
* `z`- show label classes on top of annotations as long as the key is pressed

#### Tool selection <a href="#tool-selection" id="tool-selection"></a>

* `m`- Move/Edit
* `p`- Polygon
* `r`- Bounding Box (as in Rectangle)
* `o`- Box to Instance
* `x`- DEXTR
* `b`- Brush
  * `e`- Eraser (when using brush)
* `s` - Semantic Segmentation Assistant (when available)
* `j` - Object Detection (when available)
* `i` - Instance Segmentation (when available)

#### Move/edit tool (M) <a href="#move-edit-tool-m" id="move-edit-tool-m"></a>

* `shift + left mouse click`- select multiple objects/points (including marquee tool to drag large selection(s))
* `cmd / ctrl + a`- select all labels
* `backspace / delete / fn + delete`- delete label(s)/point(s)
* `cmd / ctrl + c`- copy label(s)
* `cmd / ctrl + v`- paste label(s)
* `cmd / ctrl + x`- cut label(s)
* `cmd / ctrl + d`- duplicate label(s)
* `↓ / ↑ / → / ←`- (when annotation(s) are selected) move annotation(s)
* `↓ / ↑ / → / ←`- (when label vertex/point(s) selected) move point(s)
* `alt + ↓ / ↑ / → / ←`- move label/point a smaller distance
* `shift + ↓ / ↑ / → / ←`- move label/point a larger distance
* `y`- change label class to the next label class in the list
* `shift + y`- change label class to the previous label class in the list
* `shift + o`- send object(s) to the front
* `shift + u`- send object(s) to the back
* `shift + c`- converts polygon(s) to mask(s) or vice versa

#### Polygon tool (P) <a href="#polygon-tool-p" id="polygon-tool-p"></a>

* `a`- place first and additional vertexes of a polygon
* `backspace / del`- remove last placed vertex
* `enter / double click left mouse / click on first vertex`- complete polygon
* `esc`- cancel current polygon/exit tool to Move/Edit

#### Bounding box (R) <a href="#bounding-box-r" id="bounding-box-r"></a>

* `a`- place the first corner of a bounding box/place second corner of a bounding box (completing box)
* `enter`- complete bounding box
* `esc`- cancel current bounding box/exit tool to Move/Edit if none in progress

#### DEXTR (X) <a href="#dextr-x" id="dextr-x"></a>

* `a / left mouse click`- add an extreme point
* `backspace / del`- delete the last extreme point
* `, / .`- decrease/increase threshold
* `enter`- accept an suggestion of label

#### Brush (B) / Eraser (E) <a href="#brush-b-eraser-e" id="brush-b-eraser-e"></a>

* `, / .`- decrease/increase the size of the brush/eraser
* `shift + o`- enable / disable overpainting
* `shift + f`- fill closed path
* `shift + i`- invert mask
* `b`- shift to brush (if using eraser)
* `e`- shift to brush (if using brush)

#### Semantic Segmentation Assistant (S) <a href="#semantic-segmentation-assistant-s" id="semantic-segmentation-assistant-s"></a>

* `, / .`- decrease / increase confidence
* `enter`- accept all suggested segmentations

#### Instance Segmentation Assistant (I) <a href="#instance-segmentation-assistant-i" id="instance-segmentation-assistant-i"></a>

* `, / .`- decrease / increase confidence
* `enter`- accept all suggested segmentations

#### Object Detection Assistant (J) <a href="#object-detection-assistant-j" id="object-detection-assistant-j"></a>

* `, / .`- decrease / increase confidence
* `enter`- accept all suggested objects


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