Show frequency and dBm/time context next to mouse pointer

I keep looking at the x and y axises (dBm for spectrum, time for waterfall and x-axis frequency for both) and estimate exact frequency or calculating SNR alot. That is for frequencies that the slice is currently not on.  I wonder if it is possible to add a mouse pointer tool tip that would show this information? May be a setting could be toggle this on/off?

Sort of like this:



Thanks
Andy
KU7T