How to make a plant uml activity diagram travel left to right

Question

I've created an activity diagram with swimlanes in plant uml the diagram travels from top to bottom but I want to make it travel left to right. I found this answer about PlantUML different layouts but it does not seem to apply to activity diagrams. And when i tried to apply "left to right direction" to my diagrams there were errors.

Example code

@startuml
|Swimlane 1|
start
 :Do something;
|Swimlane 2|
 :Do something;
 stop
@enduml

Diagram that I want to travel from left to right instead of top to bottom.

Answer 1

There is no way to do this in PlantUML.