As you know, you improve your working speed a lot by using keyboard shortcuts. Deside to just learn a few of the most important ones - or - if this works well for you, memorize most of them.
Maybe you didn't know that Animation Paper has 'hidden' keyboard features. Go ahead and take a closer look at the list below...

Drawing

Draw (latest drawing tool)

D

Draw Settings (To have the settings box come up, where you have your pointer, press and hold D as you adjust your settings, then let go of D again to close the box)

Shift D    or   Hold D

Erase (latest erasing tool)

E

Erase Settings (As with Draw Settings above, you can use press and hold E to get to the settings quickly)

Shift E   or   Hold E


Toggle between Draw and Erase

(Period)   .


Kneaded Eraser

1

Rubber Eraser

2

Vinyl Eraser

3


Pencil

P or 4

Marker

M or 5

Brush

B or 6


Quick adjustment of size (drag left/right) and opacity (drag up/down)

Hold Option and drag

Decrease or increase pen-size in steps

[   or   ]

Toggle Cursor look (between Crosshair and Dot)

(Comma)   ,

Flip & Play

Play

Space


Flipping - Step Back / Step Forward

Left / Right arrow keys

Back / Forward - skipping local clones

Up / Down arrow keys

Skip Back / Forward - to drawing marked with a Key

Shift Up / Down arrow keys


Return Flip (Flips backwards as Return/Enter key is held, then flips forward when released, to end at current frame. If key is held again while it flips forward, it goes past current frame and returns on release. Works well when repeated. Needs a little practice)

Hold Return


Scrub (from anywhere within the Drawing Area)

You have two options when leaving this mode: Either you lift up your pen and then release the Shift key - this returns you to the Current Drawing before you started scrubbing. Or, you first let go of Shift and then lift your pen - this allows you to stay on the drawing you scrubbed to.

Hold Shift and drag left/right or up/down


Jump to Start / Jump to End

Home   /   End


Step Range-Start Back or Forward 

Cmd Left arrow   or   Cmd Right arrow

Step Range-End Back or Forward 

Shift Cmd Left arrow   or  Shift  Cmd Right arrow

Reset Range-Start to First Frame or Range-End to Last Frame

Cmd Home   or   Cmd End


Expert Flipping (alternative to using arrow keys):

Flip between originals (Back / Forward - skipping local clones)

Q   /   W

Crawl on to clones (Step Back / Step Forward)

Option Q   /   Option W

Flip between Marked Key Drawings only

Caps Lock on (or hold Shift) while using Q and W

Light Table (View)

Backlight (Onion Skin) On/Off

Shift Space

Customize Backlight...

Shift Cmd Space

Toggle between A and B backlight settings

Shift Option Space


Hand Tool

Hold H   + drag

Zoom

Hold Z   + drag

Rotate

Hold R   + drag

Hand/Zoom/Rotate (combined tool)

Hold Space + drag in area


Reset View (0°, 100%, Centered)

0

Fit View

Cmd 0


Quick Zoom (zoom in for drawing quick details, then zoom back out)

tap Z, draw, tap Z again


Zoom In / Out

Cmd = or Cmd + / Cmd -

Zoom View X1, X2, X4, X8 or X16 (100% to 1600%) - Zoom in

Cmd 1, 2, 3, 4 or 5

Zoom View X1/2, X1/4, X1/8 or X1/16 (50% to 6%) - Zoom out

Cmd 6, 7, 8 or 9


Rotate View - Clockwise or Counter-Clockwise

>   or   <

Rotate View - Set to North, North East, East, South East, South, etc

Number keys on NumPad correspond to compass direction


Grid On/Off

G

Next Grid Type (cycle through the different grids)

Shift G


Mark (or Unmark) as Key Drawing

K

Unmark All (Clear Keys)

Shift K


Only Backlight Key Frames

Cmd K


Mirror View

Y


Take Frame Off the Pegs

Hold Option and Cmd + drag to  move and rotate

X-Sheet

Show (or hide) the X-Sheet

Tab

Detach X-Sheet as Separate Window

Shift Tab


Toggle Mode - switch between Add Clones and Slide mode (when dragging X-Sheet Thumbnails)

T


New Layer

N


Duplicate Layer

Shift Cmd D


Delete Layer

Shift Cmd Delete


Active Layer - Go to Layer Above or Below

PageUp   or   PageDown

Active Layer - Go to Top or Bottom Layer

Shift PageUp   or   Shift PageDown


Active Layer - Visible

V

Active Layer - Linked

-


Merge Layer Down (Right)

&


Unlink All Layers (Link All Layers)

U (Shift U)


X-Sheet Thumbnail Size - Smaller or Larger

Cmd <   or   Cmd >

Edit

Undo (multiple undos)

Cmd Z

Redo (multiple redos)

Shift Cmd Z


Add Clone Drawing

 (Apostrophe)   '

Add Blank Drawing

Cmd Down arrow

Insert Blank Drawing

Cmd Up arrow


Turn Clone into Original

O

Duplicate Drawing as Original

Cmd D


Cut Drawing (or Selected Drawings)

Cmd X

Copy Drawing (or Selected Drawings)

Cmd C

Paste Drawing (or Drawings)

Cmd V


Clear Drawing (make it Blank) - this works on a Clone too, making it an original blank

*

Lose Drawing (Keep Timing)

/


Delete Drawing (or Selected Drawings)

Cmd Delete

Back-delete Drawing (or Selected Drawings)

Cmd Backspace


Select All Drawings

Cmd A


Cycle Selected Drawings Once

@

Pick Up (Selection)

Lasso

L

Cutter

X

All (whole drawing)

A


Stamp Floating Selection

Return


Drop Floating Selection

Esc

Get latest Floating Selection back

Shift Esc


To lock aspect - while scaling your selection:

Hold Shift


To keep your selection - while stamping:

Hold Shift

Paint (coming soon, free update)

New Paint Layer (with Clone Structure of active layer)

Shift Cmd N


Color Picker & Palette

C


Eye Dropper Tool

I

Fill Tool

F

File

New Scene

Cmd N

Open Scene

Cmd O


Save Scene

Cmd S

Save Scene As

Shift Cmd S


Import (Frames, Movie Clip or Audio)

Cmd I

Export Movie Clip

Cmd E


Scene Settings...

Shift Cmd I

Miscellaneous

Reference Display

#


Speed Dial (Primary)

Hold S - then drag/release to select

Speed Dial (Secondary)

Hold Shift S - then drag/release to select


Show Tool Bar

Cmd T


Settings

Cmd (Comma) ,


Quit Animation Paper

Cmd Q


Minimize Animation Paper

Cmd M


Help - Video Tutorials

Cmd ?