Please add sorting options in 4K Instagram

I am a paid user of 4K Stogram and I use it to save several (hundreds) users, but usually the newly added are on top. However, there are users I follow that are more relevant to me, so I would like to keep them on top. Currently, I cant' do that and there is no search function either to browse through my current users. So at least if would be desirable a personalized sorting option (not just alphabetically, for example). As I mention above, this is a problems when you manage a large list of users