Can I automatically position the Y1 and Y2 cursors to the voltage values at X1 and X2?

Yes, in the Keysight InfiniiVision 5000/6000/7000 Series oscilloscopes, you can do this using SCPI remote programming commands, follow these steps:

1. Use the :MARKer:X1Position? query. The oscilloscope returns a horizontal position value (for example: 1.07e+3).
2. Use the :MEASure:VTIMe? 1.07e+3,CHAN1 query (substitute your X1 position value and source channel). The oscilloscope returns the voltage value at the X1 position (for example: +2.52E+00).
3. Use the :MARKer:Y1Position +2.52E+00 command (substitute the voltage value you just got from the :MEASure:VTIME query).
4. Note that the ± signs are important and should not be neglected.