simulation
cover mode
click to put cover in auto-mode [OA] auto
click to always show the cover [OS] show
click to always hide the cover [OH] hide
skeleton
click to restore all parts [X1] off
click to remove several parts [X0] on
exploded view
click to restore from exploded view [IM] implode
click for exploded view [EX] explode
viewpoints

viewpoint locking

environment
background color setters
click to hide the background color setters [BH] hide
click to show the background color setters [BS] show
fog control
fog on/off

linear fog
exponential fog

increase fog density
decrease fog density

visibility range: 200 [mm]
operation
clearing
click to fold back the clearing lever [CF] fold lever
click to expand the clearing lever [CX] expand lever
first expand the clearing lever [CX] clear results
first expand the clearing lever [CX] clear turns counter
click to clear the settings [CS] clear settings
carriage position
click to move carriage to x 1 position [0001]  0001 (x 000001)
click to move carriage to x 10 position [0010] 0010 (x 000010)
click to move carriage to x 100 position [0011] 0011 (x 000100)
click to move carriage to x 1000 position [0100] 0100 (x 001000)
click to move carriage to x 10000 position [0101] 0101 (x 010000)
click to move carriage to x 100000 position [0110] 0110 (x 100000)
cranking
click to rotate the crank very fast [C1] >>>> click to rotate the crank fast [C2] >>> click to rotate the crank slow [C3] >>  click to rotate the crank very slow [C4] >  
adder mode
click to put the Curta in add mode [A] add
click to put the Curta in subtract mode [S] subtract
turns counter mode
click to put the turns counter in increment mode [TI] increment
click to put the turns counter in decrement mode [TD] decrement