Mt. Whitney April 22nd permit release

I struck out on the lottery this year. Those who have had experience getting permits on the April release day, I have a few questions. Thank you in advance.

• What is the format of the page? Do I select a day and hope for the best, or is there a calendar view and I just jump on the first day I see available permits?

• Can I still request multiple permits, or is it individual/single permits only? Basically, will my partner need to be as lucky as me, or can one of us lock in a second permits for the other?

• Is there an option to filter single day and overnight?