Dear Guillaume, thank you for your reply.
These offset settings change where the cursor will start on the curve.
At least in my version 0.8.42 beta.

Under Cursor offsets> »Begins From » I can set the start of the cursor on the curve; « Goes from » I have noticed it does the same thing.

I would like to know if it is possible to put cursors in relation with the global timing.
I would like to set an offset, and the cursor waiting at start position at the beginning of the curve, until the global time matches its offset.

I would do something like:
starting playback, and two out of three curves don’t play, until a certain time specified. Is that possible at all?

Hope this is clearer than before, my apologies for the confusion.

thanx

tom