Be able to visualize numerical data as proportional circles on the map

Hi there 

When you visualize numerical data (integer, decimal or numeric calculated values) on the map you do not have the option to see them as proportional circles that adapt to the values. It would be very useful to have as option either to visualize this data as proportional circles or as colors based on the range of values as it already the case.
I am working with the KOBO Humanitarian response server.

Thanks to take this into account