Getting PortSpeed @ Y-Scale

[z400]

This is my first Post in this Forum, so i say Hi@all!
At first, excuse by bad english. The School is some day' ago.

Now my problem.
I'd like to have the generated Graphs with the Interface-Speed at the
X-Scale. Like this (100MBit/s):



and the in & Outbount Counters should be in %.

Is this possible? What can i do to have this like my wishes?

Tips, Links an so on are welcome