Done action Line

Is it normal that when a line is set to done action , it also affect other objects before those line objects has not passed yet ?

Notice the second line , it’s envelope time is set to 1 second , when it’s done the first line has also become silent ( it’s time is set to 5 seconds )
Setting first line done action to ‘0’ it still is affected by the second line , iow done action affect all other lines .
Is this intentional behaviour ?

I’m still 2 days deep in supercollider so you al have to excuse me for the rather idiot quesions .

doneAction affects the entire Synth node that it belongs to.