Question re-phrased:
Are there any probes for which the 3000X or 3000T expose a probe offset control? Is the hardware even present?
I got excited when I found the offset control that pops up when you touch the channel area at top of screen, only to find out it was the same as the vertical position control.
BTW, if you want to play with probe multipliers and termination, use a 121K resistor for ID. Now the scope thinks it has an N2744A Tektronix probe adapter attached, and lets you choose from the entire range of support Tek probes. I did not see an offset control appear for any of the Tek probes but need to check again.