1 1 0 , 1 5000 0 , 0 0 5001 into vline~
I would expect it to reach 1 @ 1 ms , stay at 1 for 5000ms(sustain ) and fall to zero instantly
Instead it does a fade of 5000ms to 1 , iow the first part is kind of ignored .

I just want a 1 ms fade in to get rid of click

I'm an idiot
I forgot the delay value in the sustain part
1 1 0 , 1 5000 1 , 0 0 2

[1 1, 0 0 5001(

rise till 1 in 1 ms, wait for 5000 ms then fall to 0 in 0 ms.