I want to see how much resources is place in a work site and review the data from it. If our company send people from different sites. I want to see how much time my staff work at certain site and if the product is worth the time invested it. I strongly recommend more sorting functions to facilitate data gathering. If you are already have some sort of filters, why not make it more flexible with more options including other data you already collected. You are not doing the analysis, just providing the data in a organize way.
Why should we implement this
This is useful in terms of resource management and strategic planning as well. It adds a lot more possibilities and benefits to your current system, which facilitate your clients for easier analysis. More selling points while the work should not be much more than then what your product already invested in.