Configring max number of cpus per cloud

It would be nice to have option to set maximum number of CPUs per cloud.

This would be useful in cases when there are quite different sizes of templates in one cloud. For example one template with 1 CPU HW and another template with 16 CPUs. At the moment if I have hard limit of 100 cpus in my cloud, then I have configured the max num of instances of 5 for the 16 core template and 20 for the single core template. This is not very dynamic. What I would like to do is to configure just the maximum number of cpus to be 100, which would then be consumed by those two templates on what ever way requested.