When you add models to a group, you have to expand the group and the models and often the string and nodes of the model to see if there are any effects you've already added before you overlay an effect to the group. It would be a big time saver and a huge frustration saver if there was a way to switch on and off something to show that effects exist already somewhere nested in the group along the timeline. Just a ghost indicator of some type. This issue has really complicated node level sequencing for me. To the point that I'm starting to avoid grouping. And grouping is the absolute best part of sequencing...
Jeff
Edit: Unfortunately, this issue has caused me to reconsider using groups in my sequences. I've removed them completely, and moved all effects back to the node level. Hiding effects when nested makes them too complicated and time consuming to use, so they've become absolutely useless to me. Creating a complicated and really cool sweeping chase at node level, then not being able to tell where it starts and stops at group level means they have zero value to me. I'm not a fan of their use to render an effect across several models anyway, so no loss there. Now if there was a way to hide the string level row, as that has just become wasted space to me too...