In addition, `left to right direction` reverses the "note" position on packages: notes placed as bottom, goes on top of the package. and viceversa.
@startuml
left to right direction
package PACK1 {
usecase TEST1
}
usecase TEST2
note bottom of PACK1
A note bottom of PACK1.
endnote
note bottom of TEST2
A note bottom of TEST2.
endnote
@enduml