Show child tabs when hovering over collapsed parent or closing branch

[vityav]

Hello,
As a recent convert from TST the only feature I'm missing is the ability to hover over a collapsed branch and see all of the leaves. Being able to quickly tell what's under a collapsed parent makes navigating and finding tabs much quicker and easier. It's also useful before closing a whole collapsed branch. I've attached screenshots of both as examples.

Thanks for the awesome program!