Marks and Targets performed in Source Timeline should reflect in source monitor

My workflow in the Avid days was to load up a stringout in my source monitor, toggle to that sequence with the press of a button, target all the tracks and set in and out points, toggle back to the Program timline, and cut the stuff in. While pancake editing kinda "solves" this, it feels more like a workaround and far less elegant.

In Premiere, while being able to open a source sequence in a Source Timeline is helpful, seemingly no interactions other than moving the playhead seem to have any bearing on what is happening in the source monitor itself. I can set an in/ out and target tracks all day, but the targets do not reflect in the Program's Timeline nor do the in/ out marks translate to the Source monitor.

I don't always know what tracks I want before I load a sequence into the source monitor - that's why I open in Source Timeline. With the current workflow, I have to make a mental note in the Source Timeline and apply the patches to my Program Timeline AND copy/ paste the timecode for my in/ out marks into the source window.

If I wanted to interact with the Source Timeline as a completely separate entity, I would have just opened the sequence in a tabbed timeline and worked with it that way. It seems like opening it in the source monitor at all kinda defeats the purpose.