Draw an activity across multiple swimlanes

+1 vote
asked May 10 in Question / help by Strqst400

I would like to be able to draw an activity that spans multiple swimlanes. This activity is performed simultanoeously by two or more actors. 

A Definition like this:

|C|

|A|

|B|

|A|

start

|C|

|A|

|B|

:Task1|

|A|

stop

Does not produce the result that I am looking for. Any help will be most appreciated. 

Strsqt400

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