On most of our platforms, we also do not offer this. Silexx has the ability to group positions but not like you are both listing. For me, I have more of a Market Maker mentality. I only want my positions grouped by underlying and see net Greeks. I look at complicated equity/option positions like soup. Once I toss in the ingredients, I only care what it tastes like. Same for positions, I only care about the nets per symbol.
I also want to group it with trades I have closed out. So that i understand the full performance of the trade thesis.