Unable to modify X axis units and start point on graphs

[kawalkQCWski]

Current graph only allow for the x units to be in time units (s). Some instruments like spectrum analyzers, Vector network analyzers , frequency generators operate in Hz units . It would be very nice to have an option to switch between units on the X axis of graphs. This function will only be useful if additionally one can specify the start point. For example a vector network analyzer will never start at 0Hz but might start for example at 5MHz and provide data at fixed frequency points. The number of points vary : 51, 101, 201 , 401, 801, 1601 ..... preferred input would be Start frequency (Hz) , frequency step(Hz), Y values
Here is an example of a frequency response of a device measured by such a unit:

Here is what a graph of that data looks like in the current graphing application

here is Y data (401 points ) Start is 5MHz and End is 55MHz therefore the step size is (55-5)/(401-1)=0.125Mhz

Y values .txt