hidding some idea categories _ ideas page with specific idea category

Hi, Thank you for excellent plugin.
2 Question(S):
1- we need hide some idea categories from WP Idea Stream Category. how we can?
2- in ideas page (For Example: https://mysite.com/ideas),
a.how can we load ideas with specific category such as https://mysite.com/ideas/category/cat1
b.there are 2 box in ideas page(search , sort). How we can add category section (dropdownlist/chekbox) to choice and filter them?

Thank you very much;
by the way, after update WP Idea Stream an WordPress, there is some problems with our site:
I) we use category widget in the footer,something is wrong:
in main page, we see category but internal pages, return WP Idea Stream Category instead of normal category widget!!!!

II) in integration with buddypress, in link such as https://mysite.com/members/someone/ideas/ there are ideas for someone.
in pagnition of this section, link look like : “ideas/page/2/” instead of “https://mysite.com/members/someone/ideas/page/2/”

III) we can’t rate and comment on ideas.

Thank you very very very much.