There are 2 stages to this issue, I'll deal with the more complex one.
Stage 1 - building your histogram - refer to this guide Build a Histogram
Stage 2 - selectable measures
Step 1 - create a parameter for all of the measures you wish to be inside your selectable menu. Note I have changed data type to string and allowable values to list.
Step 2 - create a calculated field to switch through the measures
Step 3 - drop into viz canvas and show the parameter
You can create your histogram using this technique.
HTH 10.4 attached
Ravishankar.twbx 380.6 KB
Thanks Peter. That was very helpful.