1. Right now there is no option for that. I will add this as a feature request, this should not be too complicated to implement, so expect it with the next update.
2. You have a test custom field filter set, which is not matching the portfolio results. Once I remove it and test it on the back-end, it works as expected: https://i.imgur.com/IGqqsvZ.png
( no worries, I did not save the settings after changing, just changed them for the preview )
3-4. I would say 5-10 days, depending on how the tests go and how many support requests I get in that interval, as I'm always doing those first, and programming in the remaining part of the day.Best,
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