| Class | Superclass | Slots |
| direction | ||
| enabled disabled | ||
| Word | Stack effect |
| ( orientation -- button ) | |
| ( vector -- elevator ) | |
| ( orientation left right -- pen ) | |
| ( orientation amount left right -- button ) | |
| ( orientation -- pen ) | |
| ( orientation -- thumb ) | |
| ( orientation -- button ) | |
| ( object -- object ) | |
| ( thumb -- ) | |
| ( thumb -- thumb ) | |
| ( elevator -- -1/1 ) | |
| ( thumb -- ) | |
| ( elevator -- ) | |
| ( elevator -- ) | |
| ( slider -- n ) | |
| ( -- value ) | |
| ( gadget -- slider/f ) | |
| ( -- value ) | |
| ( slider -- ) | |
| ( thumb slider -- ) | |
| ( thumb slider -- ) | |
| ( -- value ) | |
| ( m slider -- n ) | |
| ( slider -- ? ) | |
| ( slider pen -- pen ) | |
| ( slider -- n ) | |
| ( m slider -- n ) | |
| ( slider -- h ) | |
| ( slider -- loc ) | |
| ( -- value ) | |
| ( slider -- n ) |
| Word | Stack effect |
| ( object -- ? ) | |
| ( object -- ? ) | |
| ( object -- ? ) | |
| ( object -- ? ) |