We first started to ask for SPR's for this function since solidworks 2015, yet it hasnt been implemented yet. 
Inventor has the function to create a BOM with just the ballooned items. We used to use this for our partspage as the machines sometimes contain 3000+  parts while just 20 parts have to be highlighted and be notified in the BOM. Showing the indented BOM means creating a bom of 3000 parts which creates an huge demand of our CPU/GPU

The BOM contains a value in order to show which items have balloons when expanding the table, so normally I would think that this value (either 0,1 or w.e.)  should be able to create an if 0 delete row else keep row, kind of code yet I'm not experienced enough to see if it's that simple. 

I've heard more people with the exact same problems, so I was wondering if anyone has a marco doing this kind of thing? 

Thanks in advance!