Passive Skill panel improvement ideas

I've recently started to grind through the main acts and kept finding myself alt+tabbing after every few level-ups because I forgot what skills I wanted to get next or where they actually were. A few simple changes to the game could make this experience way smoother:

* Add a search field to the passive skill panel, similar to the stash
* Allow players to mark some nodes ahead of time without actually having the points for them, save this to the servers so it gets carried across computers
* Maybe add a display of the shortest path(s) required to get all marked nodes and how many skill points are left until they're all allocated (jewels like Intuitive Leap could lead to some problems here, I admit :) )

Sell a consumable MTX overlay that we could draw/write on like MSPaint for each character.