Blue automation line visible when hovering over event

Hi

Is the blue line that becomes visible when hovering over an event while the pencil tool is engaged meant to be trim/input gain clip automation?

I have a strong suspicion it is, but would love confirmation.

Thank you

Not sure what you mean by a blue line? Perhaps the vertical that indicates where a new Part would start if you began drawing one?

A screen capture of what you are looking at would be helpful.

Try this: select the pencil tool, put the mouse over an existing audio region/event, and you will see a line become visible. I guess this is the clip gain, don’t know what else it would be. But then I thought this and pre-gain setting are linked but it doesn’t affect it,

It’ s the event envelope.