I think the title says most of it, other than explaining a cooldown may be needed for PA to implement this as a toggle, to make sure its not improperly abused/mis used.

Even though the new crystal system is amazing, it is lacking the ability to quickly identify if you are in a bad situation and you have crystals on. Just a simple UI element at the top to glance at, thats lit or unlit, would solve this entire issue, and allow us to monitor our crystal risk at a glance. Please consider how to implement this in a fashion that suits Dev needs of balance, and player needs of systems monitoring of at risk crystals. Trying to open Inventory and hover over the crystals popup to know if they are applied, is extremely unrealistic in a dangerous situation. Not being able to change them in that situation even, is ok, but being able to SEE they are on, would be so great:)

I somewhat imagine, a button in line with pets, having either just lit on or off. OR, (hopefully) a drop down/UI that lets u change which preset but not whats in the presets (with a cooldown or whatevers needed so its not abused for pvp scenarios)

Thanks for your time!

Seconded!

Moving the UI away from the Black Spirit would be an added bonus, as well.

for anyone who has downvoted, please give a reason or counterarguement along with your downvote so we can come up with a solution that fits everyone. What is it about knowing your crystals are on, that you are downvoting? 

I support your idea, but I imagine some people here downvote because they would prefer their suggested changes get more visibility rather than your idea. Selfish behaviour if anything.

A cooldown between swapping would be better than pulling up the Black Spirit, it takes around 5 seconds for the BS menu to pop up, so that seems appropriate and not that much of an inconvenience if you accidentally hit the wrong preset.