QoL improvements on sustain items

It would be nice if items RoA, HGB, BoRK provided two types of stats: 1) Recent sustain 2) Total sustain

I play Ryze and often times I don't know how much I'm actually healing from RoA and Ravenous Hunter. The green, obtained health stats are usually jumbled and I really don't know if one of the other aren't working. Sometimes RoA feels underwhelming (which is why most Ryze players resort to Morellonomicon). I was just wondering if there could be a way to implement this sort of information